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connection between $ i^2 = -1 $ and where $ i $ lives we began our study of complex numbers by inventing a number $ i $ that satisfies $ i^2 = -1 $ , and later visualized it by placing it outside the number line , one unit above $ 0 $ . with the visualizations offered in the last article , we can now see why that point... | hence all the answers will be of the form $ z = \sqrt [ n ] { r } \cdot \left ( \cos\left ( \dfrac { \theta + 2k\pi } { n } \right ) + i\sin\left ( \dfrac { \theta + 2k\pi } { n } \right ) \right ) $ for some integer value of $ k $ . these values will be different as $ k $ ranges from $ 0 $ to $ n-1 $ , but once $ k=n ... | where does n-1 come from ? |
connection between $ i^2 = -1 $ and where $ i $ lives we began our study of complex numbers by inventing a number $ i $ that satisfies $ i^2 = -1 $ , and later visualized it by placing it outside the number line , one unit above $ 0 $ . with the visualizations offered in the last article , we can now see why that point... | if you are given values $ w $ and $ n $ , and asked to solve for $ z $ , as in the last example where $ n=6 $ and $ w = -27 $ , you first find the polar representation of $ w $ : $ w = r ( \cos ( \theta ) + i\sin ( \theta ) ) $ this means the angle of $ z $ must be $ \dfrac { \theta } { n } $ , and it 's magnitude must... | why is pi in there ? |
key points : when a population is in hardy-weinberg equilibrium for a gene , it is not evolving , and allele frequencies will stay the same across generations . there are five basic hardy-weinberg assumptions : no mutation , random mating , no gene flow , infinite population size , and no selection . if the assumptions... | in our population , let 's say that the a allele has a frequency of $ 0.3 $ , while the a allele has a frequency of $ 0.7 $ . if a population is in hardy-weinberg equilibrium , allele frequencies will be related to genotype frequencies by a specific mathematical relationship , the hardy-weinberg equation . so , we can ... | what is the point of using the hardy weinberg equation if there is no population that fits the conditions anyways ? |
key points : when a population is in hardy-weinberg equilibrium for a gene , it is not evolving , and allele frequencies will stay the same across generations . there are five basic hardy-weinberg assumptions : no mutation , random mating , no gene flow , infinite population size , and no selection . if the assumptions... | so , while a population may be in hardy-weinberg equilibrium for some genes ( not evolving for those genes ) , it ’ s unlikely to be in hardy-weinberg equilibrium for all of its genes ( not evolving at all ) . mechanisms of evolution different hardy-weinberg assumptions , when violated , correspond to different mechani... | how does evolution unify the biological sciences ? |
key points : when a population is in hardy-weinberg equilibrium for a gene , it is not evolving , and allele frequencies will stay the same across generations . there are five basic hardy-weinberg assumptions : no mutation , random mating , no gene flow , infinite population size , and no selection . if the assumptions... | no new alleles are generated by mutation , nor are genes duplicated or deleted . random mating . organisms mate randomly with each other , with no preference for particular genotypes . | in the conditions for the hardy-weinberg equilibrium , how does random mating stabilize the allele frequency ? |
key points : when a population is in hardy-weinberg equilibrium for a gene , it is not evolving , and allele frequencies will stay the same across generations . there are five basic hardy-weinberg assumptions : no mutation , random mating , no gene flow , infinite population size , and no selection . if the assumptions... | aa and aa beetles are dark gray , and aa beetles are light gray . in our population , let 's say that the a allele has a frequency of $ 0.3 $ , while the a allele has a frequency of $ 0.7 $ . if a population is in hardy-weinberg equilibrium , allele frequencies will be related to genotype frequencies by a specific math... | could you say that the frequency of the dominant trait stays constant ? |
key points : when a population is in hardy-weinberg equilibrium for a gene , it is not evolving , and allele frequencies will stay the same across generations . there are five basic hardy-weinberg assumptions : no mutation , random mating , no gene flow , infinite population size , and no selection . if the assumptions... | so , we can predict the genotype frequencies we 'd expect to see ( if the population is in hardy-weinberg equilibrium ) by plugging in allele frequencies as shown below : let 's imagine that these are , in fact , the genotype frequencies we see in our beetle population ( $ 9\ % $ aa , $ 42\ % $ aa , $ 49\ % $ aa ) . ex... | for uniparental inheritance , such as mitochondrial dna that we inherit maternally , would hardy-weinberg equilibrium analysis be relevant ? |
key points : when a population is in hardy-weinberg equilibrium for a gene , it is not evolving , and allele frequencies will stay the same across generations . there are five basic hardy-weinberg assumptions : no mutation , random mating , no gene flow , infinite population size , and no selection . if the assumptions... | in non-random mating , organisms may prefer to mate with others of the same genotype or of different genotypes . non-random mating wo n't make allele frequencies in the population change by itself , though it can alter genotype frequencies . this keeps the population from being in hardy-weinberg equilibrium , but it ’ ... | should n't the allele frequencies technically be labeled as allele proportions ? |
key points : when a population is in hardy-weinberg equilibrium for a gene , it is not evolving , and allele frequencies will stay the same across generations . there are five basic hardy-weinberg assumptions : no mutation , random mating , no gene flow , infinite population size , and no selection . if the assumptions... | neither individuals nor their gametes ( e.g. , windborne pollen ) enter or exit the population . very large population size . the population should be effectively infinite in size . | why is a large population a requirement for hardy-weinberg to work ? |
key points : when a population is in hardy-weinberg equilibrium for a gene , it is not evolving , and allele frequencies will stay the same across generations . there are five basic hardy-weinberg assumptions : no mutation , random mating , no gene flow , infinite population size , and no selection . if the assumptions... | no new alleles are generated by mutation , nor are genes duplicated or deleted . random mating . organisms mate randomly with each other , with no preference for particular genotypes . | would n't random mating contradict the idea that no net mutations can occur ? |
key points : when a population is in hardy-weinberg equilibrium for a gene , it is not evolving , and allele frequencies will stay the same across generations . there are five basic hardy-weinberg assumptions : no mutation , random mating , no gene flow , infinite population size , and no selection . if the assumptions... | no new alleles are generated by mutation , nor are genes duplicated or deleted . random mating . organisms mate randomly with each other , with no preference for particular genotypes . | if random mating does happen , would n't it increase the chances of a mutation ? |
invitations to visit europe by the time the 1770s arrived , john singleton copley was the undisputed king of portraiture in the american colonies . yet despite this fact , he had longed to visit the old world , and he had , in fact , received much encouragement to permanently move to london . copley ’ s early masterwor... | writing his autobiography nearly fifty years later , trumbull still recalled this first brush—get it ? brush ! —with artistic fame : we found mr. copley dressed to receive a party of friends at dinner . i remember his dress and appearance—an elegant looking man , dressed in a fine maroon cloth , with gilt buttons—this ... | what was the artistic fight copley made against the british ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | fortunately , there 's a mathematical function that means the same thing as the number of times we repeatedly halve , starting at $ n $ , until we get the value 1 : the base-2 logarithm of $ n $ . we write it as $ \lg n $ . ( you can learn more about logarithms here . ) | the last graph shows n versus n lg n. should n't it just be lg n ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | therefore , for a 1000-element array , binary search would require at most 11 ( 10 + 1 ) guesses . for the tycho-2 star catalog with 2,539,913 stars , the next higher power of 2 is $ 2^ { 22 } $ ( which is 4,194,304 ) , and we would need at most 23 guesses . much better than linear search ! | how do i calculate base-2 logarithms of a number on a calculator ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | why is it called binary search if there are three options ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | for an array whose length is 1000 , the next higher power of 2 is 1024 , which equals $ 2^ { 10 } $ . therefore , for a 1000-element array , binary search would require at most 11 ( 10 + 1 ) guesses . for the tycho-2 star catalog with 2,539,913 stars , the next higher power of 2 is $ 2^ { 22 } $ ( which is 4,194,304 ) ... | on the last challenge how would i complete step 3 and print how many guesses the computer used ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . | why is n't there an option to chose what programming language you want to use ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | what types of algorithms does google use for their search engine ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | in the binary search challenge why in the third step the println function has to be added in the if loop and not outside the if else statements ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . | if n=3 , the maximum guesses are 3 ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | ( you can learn more about logarithms here . ) here 's a table showing the base-2 logarithms of various values of $ n $ : | $ n $ | $ \lg n $ | | -- - | -- - | | 1 | 0 | | 2 | 1 | | 4 | 2 | | 8 | 3 | | 16 | 4 | | 32 | 5 | | 64 | 6 | | 128 | 7 | | 256 | 8 | | 512 | 9 | | 1024 | 10 | | 1,048,576 | 20 | | 2,097,152 | 21 |... | from this , are we then concluding that the running time of a binary search is ( ( log n ) + 1 ) to base 2 where n is the length of the array ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | ( you can learn more about logarithms here . ) here 's a table showing the base-2 logarithms of various values of $ n $ : | $ n $ | $ \lg n $ | | -- - | -- - | | 1 | 0 | | 2 | 1 | | 4 | 2 | | 8 | 3 | | 16 | 4 | | 32 | 5 | | 64 | 6 | | 128 | 7 | | 256 | 8 | | 512 | 9 | | 1024 | 10 | | 1,048,576 | 20 | | 2,097,152 | 21 |... | is it correct to say that ln ( n ) is faster than n*ln ( n ) , since it 's the last is equal to 2^ ( x/y ) ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | when $ n $ is not a power of 2 , we can just go up to the next higher power of 2 . for an array whose length is 1000 , the next higher power of 2 is 1024 , which equals $ 2^ { 10 } $ . therefore , for a 1000-element array , binary search would require at most 11 ( 10 + 1 ) guesses . for the tycho-2 star catalog with 2,... | not sure why it is not just 2^ ( 10+1 ) which is 2^11 instead of 11 ( 10+1 ) ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | for an array whose length is 1000 , the next higher power of 2 is 1024 , which equals $ 2^ { 10 } $ . therefore , for a 1000-element array , binary search would require at most 11 ( 10 + 1 ) guesses . for the tycho-2 star catalog with 2,539,913 stars , the next higher power of 2 is $ 2^ { 22 } $ ( which is 4,194,304 ) ... | why are we multiplying 11 by 11 ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | once the reasonable portion contains just one element , no further guesses occur ; the guess for the 1-element portion is either correct or incorrect , and we 're done . so with an array of length 8 , binary search needs at most four guesses . what do you think would happen with an array of 16 elements ? | in an array of length 8 , how is it that we need four guesses ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and binary search becomes more striking as the array length increases . let 's see how to analyze the maxim... | what is the worst case ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . | what is n in that graph ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | what do you think would happen with an array of 16 elements ? if you said that the first guess would eliminate at least 8 elements , so that at most 8 remain , you 're getting the picture . so with 16 elements , we need at most five guesses . | i keep getting : `` hm , how are you calculating the new midpoint index ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | fortunately , there 's a mathematical function that means the same thing as the number of times we repeatedly halve , starting at $ n $ , until we get the value 1 : the base-2 logarithm of $ n $ . we write it as $ \lg n $ . ( you can learn more about logarithms here . ) | is there any difference between lg and log ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | for an array whose length is 1000 , the next higher power of 2 is 1024 , which equals $ 2^ { 10 } $ . therefore , for a 1000-element array , binary search would require at most 11 ( 10 + 1 ) guesses . for the tycho-2 star catalog with 2,539,913 stars , the next higher power of 2 is $ 2^ { 22 } $ ( which is 4,194,304 ) ... | can someone please explain in detail how they came up with the following expression : 11 * ( 10+1 ) ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | in the case of binary search , which is faster than o ( n ) linear search , should it just be o ( lg n ) ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | fortunately , there 's a mathematical function that means the same thing as the number of times we repeatedly halve , starting at $ n $ , until we get the value 1 : the base-2 logarithm of $ n $ . we write it as $ \lg n $ . ( you can learn more about logarithms here . ) | the last graph shows n versus n lg n. should n't it just be lg n ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | if you said that the first guess would eliminate at least 8 elements , so that at most 8 remain , you 're getting the picture . so with 16 elements , we need at most five guesses . by now , you 're probably seeing the pattern . | i need help , does anyone know what i need to put in the 'while loop ' and how to stop it ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | what is the average number of guesses for a binary search ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | ( you can learn more about logarithms here . ) here 's a table showing the base-2 logarithms of various values of $ n $ : | $ n $ | $ \lg n $ | | -- - | -- - | | 1 | 0 | | 2 | 1 | | 4 | 2 | | 8 | 3 | | 16 | 4 | | 32 | 5 | | 64 | 6 | | 128 | 7 | | 256 | 8 | | 512 | 9 | | 1024 | 10 | | 1,048,576 | 20 | | 2,097,152 | 21 |... | with the given pseudo-code , each `` guess '' is actually two comparisons , `` equal to '' and then `` less than '' , so the maximum comparisons is actually 2* ( math.ceil ( math.log2 ( n ) ) +1 ) right ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | so with an array of length 8 , binary search needs at most four guesses . what do you think would happen with an array of 16 elements ? if you said that the first guess would eliminate at least 8 elements , so that at most 8 remain , you 're getting the picture . so with 16 elements , we need at most five guesses . | would it not be more efficient to make `` greater than '' the first comparison ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | for an array whose length is 1000 , the next higher power of 2 is 1024 , which equals $ 2^ { 10 } $ . therefore , for a 1000-element array , binary search would require at most 11 ( 10 + 1 ) guesses . for the tycho-2 star catalog with 2,539,913 stars , the next higher power of 2 is $ 2^ { 22 } $ ( which is 4,194,304 ) ... | on the binary search challenge it was a bit confusing that a line : math.floor ( ( min+max ) > > > 1 ) ; produced a message : hm , how are you calculating the new midpoint index ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | ( you can learn more about logarithms here . ) here 's a table showing the base-2 logarithms of various values of $ n $ : | $ n $ | $ \lg n $ | | -- - | -- - | | 1 | 0 | | 2 | 1 | | 4 | 2 | | 8 | 3 | | 16 | 4 | | 32 | 5 | | 64 | 6 | | 128 | 7 | | 256 | 8 | | 512 | 9 | | 1024 | 10 | | 1,048,576 | 20 | | 2,097,152 | 21 |... | why is there a plus 1 ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | if the reasonable portion had 32 elements , then an incorrect guess cuts it down to have at most 16 . binary search halves the size of the reasonable portion upon every incorrect guess . if we start with an array of length 8 , then incorrect guesses reduce the size of the reasonable portion to 4 , then 2 , and then 1 . | the term 'guess ' that we 're using here for binary search , can we call it steps ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | once the reasonable portion contains just one element , no further guesses occur ; the guess for the 1-element portion is either correct or incorrect , and we 're done . so with an array of length 8 , binary search needs at most four guesses . what do you think would happen with an array of 16 elements ? | am i just misreading `` running time of binary search '' , which seems to suggest math.ceil ( math.log2 ( a.length ) ) , as i read it ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | so with an array of length 8 , binary search needs at most four guesses . what do you think would happen with an array of 16 elements ? if you said that the first guess would eliminate at least 8 elements , so that at most 8 remain , you 're getting the picture . | for example would n't an array of 16 take at most 4 guesses , not 5 ? |
we know that linear search on an array of $ n $ elements might have to make as many as $ n $ guesses . you probably already have an intuitive idea that binary search makes fewer guesses than linear search . you even might have perceived that the difference between the worst-case number of guesses for linear search and ... | ( you can learn more about logarithms here . ) here 's a table showing the base-2 logarithms of various values of $ n $ : | $ n $ | $ \lg n $ | | -- - | -- - | | 1 | 0 | | 2 | 1 | | 4 | 2 | | 8 | 3 | | 16 | 4 | | 32 | 5 | | 64 | 6 | | 128 | 7 | | 256 | 8 | | 512 | 9 | | 1024 | 10 | | 1,048,576 | 20 | | 2,097,152 | 21 |... | m+1 makes sense when you double your size it takes 1 more guess but where does the rule for n+1 come in ? |
what is thermal conduction ? walking on bathroom tile in winter is annoying since it feels so much colder than the carpet . this is interesting , since the carpet and tile are usually both at the same temperature ( i.e . the temperature of the interior of the house ) . the different sensations we feel is explained by t... | image : the molecules in two bodies at different temperatures have different average kinetic energies . collisions occurring at the contact surface tend to transfer energy from high-temperature regions to low-temperature regions . ( image credit : openstax college physics ) what 's the equation for the rate of thermal ... | but i 'm still curious about what determine the temperature of atmosphere ? |
what is thermal conduction ? walking on bathroom tile in winter is annoying since it feels so much colder than the carpet . this is interesting , since the carpet and tile are usually both at the same temperature ( i.e . the temperature of the interior of the house ) . the different sensations we feel is explained by t... | what is thermal conduction ? walking on bathroom tile in winter is annoying since it feels so much colder than the carpet . | the radiation of sun perhaps ? |
what is thermal conduction ? walking on bathroom tile in winter is annoying since it feels so much colder than the carpet . this is interesting , since the carpet and tile are usually both at the same temperature ( i.e . the temperature of the interior of the house ) . the different sensations we feel is explained by t... | what is thermal conduction ? walking on bathroom tile in winter is annoying since it feels so much colder than the carpet . | can you say that liquid water is a bad thermal conductor ? |
what is thermal conduction ? walking on bathroom tile in winter is annoying since it feels so much colder than the carpet . this is interesting , since the carpet and tile are usually both at the same temperature ( i.e . the temperature of the interior of the house ) . the different sensations we feel is explained by t... | collisions occurring at the contact surface tend to transfer energy from high-temperature regions to low-temperature regions . ( image credit : openstax college physics ) what 's the equation for the rate of thermal conduction ? there are four factors ( $ k $ , $ a $ , $ \delta t $ , $ d $ ) that affect the rate at whi... | to calculate the rate of heat flow , is it still possible to use the formula as stated in the article ? |
what is thermal conduction ? walking on bathroom tile in winter is annoying since it feels so much colder than the carpet . this is interesting , since the carpet and tile are usually both at the same temperature ( i.e . the temperature of the interior of the house ) . the different sensations we feel is explained by t... | $ k $ : the factor $ k $ is called the thermal conductivity constant . the thermal conductivity constant $ k $ is larger for materials that transfer heat well ( like metal and stone ) , and $ k $ is small for materials that transfer heat poorly ( like air and wood ) . $ \delta t $ : the heat flow is proportional to the... | what if the heat transfer is from inside something cylindrical shaped like a pipe ? |
what is thermal conduction ? walking on bathroom tile in winter is annoying since it feels so much colder than the carpet . this is interesting , since the carpet and tile are usually both at the same temperature ( i.e . the temperature of the interior of the house ) . the different sensations we feel is explained by t... | conversely , if the temperatures are the same , the net heat transfer rate falls to zero , and equilibrium is achieved . $ a $ : owing to the fact that the number of collisions increases with increasing area , heat conduction depends on the cross-sectional area $ a $ . if you touch a cold wall with your palm , your han... | what would area a be ? |
what is thermal conduction ? walking on bathroom tile in winter is annoying since it feels so much colder than the carpet . this is interesting , since the carpet and tile are usually both at the same temperature ( i.e . the temperature of the interior of the house ) . the different sensations we feel is explained by t... | the cumulative effect from all collisions results in a net flux of heat from the hot body to the colder body . we call this transfer of heat between two objects in contact thermal conduction . image : the molecules in two bodies at different temperatures have different average kinetic energies . | how do dynamic and steady state of heat conduction differ from each other ? |
what is thermal conduction ? walking on bathroom tile in winter is annoying since it feels so much colder than the carpet . this is interesting , since the carpet and tile are usually both at the same temperature ( i.e . the temperature of the interior of the house ) . the different sensations we feel is explained by t... | the ( average ) kinetic energy of a molecule in the hot body is higher than in the colder body . if two molecules collide , an energy transfer from the hot to the cold molecule occurs . the cumulative effect from all collisions results in a net flux of heat from the hot body to the colder body . | so the sensation of something being hot or cold is simply the transfer of heat energy into or out of a system ? |
what is thermal conduction ? walking on bathroom tile in winter is annoying since it feels so much colder than the carpet . this is interesting , since the carpet and tile are usually both at the same temperature ( i.e . the temperature of the interior of the house ) . the different sensations we feel is explained by t... | this means the quantity $ \dfrac { q } { t } $ has units of $ \dfrac { \text { joules } } { \text { second } } =\text { watts } $ . $ k $ : the factor $ k $ is called the thermal conductivity constant . the thermal conductivity constant $ k $ is larger for materials that transfer heat well ( like metal and stone ) , an... | what happens to thermal conductivity of a wall if its thickness is doubled ? |
what is thermal conduction ? walking on bathroom tile in winter is annoying since it feels so much colder than the carpet . this is interesting , since the carpet and tile are usually both at the same temperature ( i.e . the temperature of the interior of the house ) . the different sensations we feel is explained by t... | this means the quantity $ \dfrac { q } { t } $ has units of $ \dfrac { \text { joules } } { \text { second } } =\text { watts } $ . $ k $ : the factor $ k $ is called the thermal conductivity constant . the thermal conductivity constant $ k $ is larger for materials that transfer heat well ( like metal and stone ) , an... | if length is doubled then does thermal conductivity become half ? |
what is thermal conduction ? walking on bathroom tile in winter is annoying since it feels so much colder than the carpet . this is interesting , since the carpet and tile are usually both at the same temperature ( i.e . the temperature of the interior of the house ) . the different sensations we feel is explained by t... | the temperature of the interior of the house ) . the different sensations we feel is explained by the fact that different materials transfer heat at different rates . tile and stone conduct heat more rapidly than carpet and fabrics , so tile and stone feel colder in winter since they transfer heat out of your foot fast... | can we heat a liquid by heating it from above ? |
what is thermal conduction ? walking on bathroom tile in winter is annoying since it feels so much colder than the carpet . this is interesting , since the carpet and tile are usually both at the same temperature ( i.e . the temperature of the interior of the house ) . the different sensations we feel is explained by t... | this means the quantity $ \dfrac { q } { t } $ has units of $ \dfrac { \text { joules } } { \text { second } } =\text { watts } $ . $ k $ : the factor $ k $ is called the thermal conductivity constant . the thermal conductivity constant $ k $ is larger for materials that transfer heat well ( like metal and stone ) , an... | do the materials that have the temperatures t1 and t2 respectevely have their own k ? |
what is thermal conduction ? walking on bathroom tile in winter is annoying since it feels so much colder than the carpet . this is interesting , since the carpet and tile are usually both at the same temperature ( i.e . the temperature of the interior of the house ) . the different sensations we feel is explained by t... | this means the quantity $ \dfrac { q } { t } $ has units of $ \dfrac { \text { joules } } { \text { second } } =\text { watts } $ . $ k $ : the factor $ k $ is called the thermal conductivity constant . the thermal conductivity constant $ k $ is larger for materials that transfer heat well ( like metal and stone ) , an... | what happens to the thermal conductivity of a wall if its thickness is doubled ? |
what is thermal conduction ? walking on bathroom tile in winter is annoying since it feels so much colder than the carpet . this is interesting , since the carpet and tile are usually both at the same temperature ( i.e . the temperature of the interior of the house ) . the different sensations we feel is explained by t... | walking on bathroom tile in winter is annoying since it feels so much colder than the carpet . this is interesting , since the carpet and tile are usually both at the same temperature ( i.e . the temperature of the interior of the house ) . the different sensations we feel is explained by the fact that different materi... | is the author really suggesting that , if one were to measure the temperature of the carpet , the tile , and the ambient air temperature in the interior of the house , they would all be exactly the same ? |
what is thermal conduction ? walking on bathroom tile in winter is annoying since it feels so much colder than the carpet . this is interesting , since the carpet and tile are usually both at the same temperature ( i.e . the temperature of the interior of the house ) . the different sensations we feel is explained by t... | the cumulative effect from all collisions results in a net flux of heat from the hot body to the colder body . we call this transfer of heat between two objects in contact thermal conduction . image : the molecules in two bodies at different temperatures have different average kinetic energies . | how do i calculate the heat transfer ? |
what is thermal conduction ? walking on bathroom tile in winter is annoying since it feels so much colder than the carpet . this is interesting , since the carpet and tile are usually both at the same temperature ( i.e . the temperature of the interior of the house ) . the different sensations we feel is explained by t... | this means the quantity $ \dfrac { q } { t } $ has units of $ \dfrac { \text { joules } } { \text { second } } =\text { watts } $ . $ k $ : the factor $ k $ is called the thermal conductivity constant . the thermal conductivity constant $ k $ is larger for materials that transfer heat well ( like metal and stone ) , an... | how stones with low thermal conductivity are good thermal conductivity ? |
what is thermal conduction ? walking on bathroom tile in winter is annoying since it feels so much colder than the carpet . this is interesting , since the carpet and tile are usually both at the same temperature ( i.e . the temperature of the interior of the house ) . the different sensations we feel is explained by t... | this means the quantity $ \dfrac { q } { t } $ has units of $ \dfrac { \text { joules } } { \text { second } } =\text { watts } $ . $ k $ : the factor $ k $ is called the thermal conductivity constant . the thermal conductivity constant $ k $ is larger for materials that transfer heat well ( like metal and stone ) , an... | while measuring the thermal conductivity of a liquid why do we keep the upper part hot and the lower cool ? |
what is thermal conduction ? walking on bathroom tile in winter is annoying since it feels so much colder than the carpet . this is interesting , since the carpet and tile are usually both at the same temperature ( i.e . the temperature of the interior of the house ) . the different sensations we feel is explained by t... | this means the quantity $ \dfrac { q } { t } $ has units of $ \dfrac { \text { joules } } { \text { second } } =\text { watts } $ . $ k $ : the factor $ k $ is called the thermal conductivity constant . the thermal conductivity constant $ k $ is larger for materials that transfer heat well ( like metal and stone ) , an... | how does the moisture and alloying of a metal effect its thermal conductivity ? |
who is the central figure in this painting ? the main image in this painting is avalokiteshvara ( 1 ) , the bodhisattva of compassion . he is the principle patron deity of tibet . he sits on a lotus throne upon a lunar disc . this god takes many forms , such as the dalai lamas of tibet , to bring salvation to the livin... | paintings like this may have been hung behind the altar in a temple in the home or monastery . real offerings of tea , fruit , flowers , pure water , butter and barley sculptures called torma would be made as well . how is a traditional tibetan thangka mounted ? | would these offerings displayed in the than-khas have some sort of meaning ? |
who is the central figure in this painting ? the main image in this painting is avalokiteshvara ( 1 ) , the bodhisattva of compassion . he is the principle patron deity of tibet . he sits on a lotus throne upon a lunar disc . this god takes many forms , such as the dalai lamas of tibet , to bring salvation to the livin... | many , like avalokiteshvara , appear in a variety of distinct forms . what are “ peaceful ” and “ wrathful ” deities ? to those who seek help , both spiritual and mundane , buddhas and bodhisattvas typically appear in peaceful , benevolent forms . | i 've always thought of these as being female deities ( besides the monks ) , is this incorrect ? |
who is the central figure in this painting ? the main image in this painting is avalokiteshvara ( 1 ) , the bodhisattva of compassion . he is the principle patron deity of tibet . he sits on a lotus throne upon a lunar disc . this god takes many forms , such as the dalai lamas of tibet , to bring salvation to the livin... | in buddhist art , a bodhisattva may appear in divine form wearing crowns and jewels , as an ordinary human , or even as a animal . avalokiteshvara is one of the most popular of the hundreds of bodhisattvas commonly depicted in buddhist art . many , like avalokiteshvara , appear in a variety of distinct forms . | also what is the difference between a four armed tara and avalokiteshvara as depicted ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | mitochondria are also somewhat unique in that they are self-replicating and have their own dna , almost as if they were a completely separate cell . the prevailing theory , known as the endosymbiotic theory , is that eukaryotes were first formed by large prokaryotic cells engulfing smaller cells that looked a lot like ... | how does the nucleus get its double membrane ( since the theory for how mitochondria gets it is the endosymbiosis theory ) ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | below is a table of the organelles found in the basic human cell , which we ’ ll be using as our template for this discussion . organelle | function | factory part : - : | : - : | : - : nucleus | dna storage | room where the blueprints are kept mitochondrion | energy production | powerplant smooth endoplasmic reticulum... | does the perinuclear area serve any other function other than protecting the dna ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | mitochondria are also somewhat unique in that they are self-replicating and have their own dna , almost as if they were a completely separate cell . the prevailing theory , known as the endosymbiotic theory , is that eukaryotes were first formed by large prokaryotic cells engulfing smaller cells that looked a lot like ... | why are cells so microscopic ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | this lumen is actually continuous with the perinuclear space , so we know the endoplasmic reticulum is attached to the nuclear envelope . there are actually two different endoplasmic reticuli in a cell : the smooth endoplasmic reticulum and the rough endoplasmic reticulum . the rough endoplasmic reticulum is the site o... | what is the biological process by which the endoplasmic reticuli synthesize their products ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | this lumen is actually continuous with the perinuclear space , so we know the endoplasmic reticulum is attached to the nuclear envelope . there are actually two different endoplasmic reticuli in a cell : the smooth endoplasmic reticulum and the rough endoplasmic reticulum . the rough endoplasmic reticulum is the site o... | and how does the addition of ribosomes in the endoplasmic reticulum affect that process ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | the rest of our discussion will strictly be on eukaryotes . think about what a factory needs in order to function effectively . at its most basic , a factory needs a building , a product , and a way to make that product . | is there any evidence of a type of organelle that used to exist but does n't anymore due to the organism evolving to where it no longer needs it ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | though part of the function of the nucleus is to separate the dna from the rest of the cell , molecules must still be able to move in and out ( e.g. , rna ) . proteins channels known as nuclear pores form holes in the nuclear envelope . the nucleus itself is filled with liquid ( called nucleoplasm ) and is similar in s... | what keeps the nucleoplasm from coming out of the nuclear pores ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | these organelles are spheres full of enzymes ready to hydrolyze ( chop up the chemical bonds of ) whatever substance crosses the membrane , so the cell can reuse the raw material . these disposal enzymes only function properly in environments with a ph of 5 , two orders of magnitude more acidic than the cell ’ s intern... | why can lysosomes not operate with the cell 's internal ph of 7 ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | this structure is responsible for both cell movement and stability . the major components of the cytoskeleton are microtubules , intermediate filaments , and microfilaments . microtubules microtubules are small tubes made from the protein tubulin . | how are microfilaments and intermediate filaments different ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | below is a table of the organelles found in the basic human cell , which we ’ ll be using as our template for this discussion . organelle | function | factory part : - : | : - : | : - : nucleus | dna storage | room where the blueprints are kept mitochondrion | energy production | powerplant smooth endoplasmic reticulum... | why do mitochondrion have their own set of dna ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | however , despite this vast range in size , shape , and function , all these little factories have the same basic machinery . there are two main types of cells , prokaryotic and eukaryotic . prokaryotes are cells that do not have membrane bound nuclei , whereas eukaryotes do . | what are other major difference between prokaryotic cells and eukaryotic cells ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | however , not every cell has each of these organelles , and some cells have organelles we haven ’ t discussed . for example , plant cells have chloroplasts , organelles that resemble mitochondria and are responsible for turning sunlight into useful energy for the cell ( this is like factories that are powered by energy... | in a plant cell , how are mitochondria used if they have chloroplasts ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | the shipping department identifies the molecule and sets it on one of 4 paths : cytosol : the proteins that enter the golgi by mistake are sent back into the cytosol ( imagine the barcode scanning wrong and the item being returned ) . cell membrane : proteins destined for the cell membrane are processed continuously . ... | what is the difference between the cytoskeleton and the cell wall/membrane ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | organelle | function | factory part : - : | : - : | : - : nucleus | dna storage | room where the blueprints are kept mitochondrion | energy production | powerplant smooth endoplasmic reticulum ( ser ) | lipid production ; detoxification | accessory production - makes decorations for the toy , etc . rough endoplasmic re... | what determines if a protein is sent there by mistake ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | for example , the liver , which is responsible for most of the body ’ s detoxification , has a larger amount of smooth endoplasmic reticulum . golgi apparatus ( aka golgi body aka golgi ) we mentioned the golgi apparatus earlier when we discussed the production of proteins in the rough endoplasmic reticulum . if the sm... | how does the golgi determine where to send each protein ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | while transcription ( making a complementary strand of rna from dna ) is completed within the nucleus , translation ( making protein from rna instructions ) takes place in the cytoplasm . if there was no barrier between the transcription and translation machineries , it ’ s possible that poorly-made or unfinished rna w... | are all proteins made with the same structure ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | an interesting idea is that mitochondria can be used to trace maternal ancestry . since mitochondria are self-replicating and have their own dna , they are not determined by the genes found in the nucleus . instead , your mitochondria have developed from the mitochondria present in the female ovum ( egg ) that you deve... | is there a difference between dna found in the mitochondria opposed to the dna found in thee nucleus of the cell ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | this structure is responsible for both cell movement and stability . the major components of the cytoskeleton are microtubules , intermediate filaments , and microfilaments . microtubules microtubules are small tubes made from the protein tubulin . these tubules are found in cilia and flagella , structures involved in ... | what is the difference in functions between microtubules and microfilaments ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | in the heart , contraction is mediated through an actin-myosin system . plants and platelets so far we ’ ve covered basic organelles found in a eukaryotic cell . however , not every cell has each of these organelles , and some cells have organelles we haven ’ t discussed . for example , plant cells have chloroplasts , ... | how are each of the organelles formed ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | the shipping department identifies the molecule and sets it on one of 4 paths : cytosol : the proteins that enter the golgi by mistake are sent back into the cytosol ( imagine the barcode scanning wrong and the item being returned ) . cell membrane : proteins destined for the cell membrane are processed continuously . ... | for instance , how does the membrane form ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | all cells have membranes ( the building ) , dna ( the various blueprints ) , and ribosomes ( the production line ) , and so are able to make proteins ( the product - let ’ s say we ’ re making toys ) . this article will focus on eukaryotes , since they are the cell type that contains organelles . what ’ s found inside ... | is there any organelle that a cell would be able to survive without ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | it is more tubular than the rough endoplasmic reticulum , and is not necessarily continuous with the nuclear envelope . every cell has a smooth endoplasmic reticulum , but the amount will vary with cell function . for example , the liver , which is responsible for most of the body ’ s detoxification , has a larger amou... | how does the smooth er detoxify the cell ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | the nuclear envelope also keeps molecules responsible for dna transcription and repair close to the dna itself - otherwise those molecules would diffuse across the entire cell and it would take a lot more work and luck to get anything done ! while transcription ( making a complementary strand of rna from dna ) is compl... | in the nucleus when the dna is turned into protein , what is the difference between the processes of transcription and translation ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | the shipping department identifies the molecule and sets it on one of 4 paths : cytosol : the proteins that enter the golgi by mistake are sent back into the cytosol ( imagine the barcode scanning wrong and the item being returned ) . cell membrane : proteins destined for the cell membrane are processed continuously . ... | in a cell , why is there more than one cell membrane ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | before an rna can exit the nucleus to be translated , it must get special modifications , in the form of a cap and tail at either end of the molecule , that act as a stamp of approval to let the cell know this piece of rna is complete and properly made . nucleolus within the nucleus is a small subspace known as the nuc... | in the nucleolus paragraph , why is a nucleolus not an organelle ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | however , despite this vast range in size , shape , and function , all these little factories have the same basic machinery . there are two main types of cells , prokaryotic and eukaryotic . prokaryotes are cells that do not have membrane bound nuclei , whereas eukaryotes do . | what types of foods have antioxidants in them ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | before an rna can exit the nucleus to be translated , it must get special modifications , in the form of a cap and tail at either end of the molecule , that act as a stamp of approval to let the cell know this piece of rna is complete and properly made . nucleolus within the nucleus is a small subspace known as the nuc... | if the nucleolus has a function of making ribosomes , why is it not considered an organelle ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | below is a table of the organelles found in the basic human cell , which we ’ ll be using as our template for this discussion . organelle | function | factory part : - : | : - : | : - : nucleus | dna storage | room where the blueprints are kept mitochondrion | energy production | powerplant smooth endoplasmic reticulum... | humans have no need for their appendix anymore due to evolution , so could something be missing a kind of organelle and still function as normal ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | they cause what is known as oxidative stress in the cell by reacting with and damaging dna and lipid-based molecules like cell membranes . these ross are the reason we need antioxidants in our diet . mitochondria just like a factory can ’ t run without electricity , a cell can ’ t run without energy . | if not , is there a possibility of evolution where we wo n't need a type of organelle in the future ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | vesicles sent to this acidic organelle contain enzymes that will hydrolyze the lysosome ’ s content . lysosome the lysosome is the cell ’ s recycling center . these organelles are spheres full of enzymes ready to hydrolyze ( chop up the chemical bonds of ) whatever substance crosses the membrane , so the cell can reuse... | at one point , would n't a lysosome have to break its self down ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | you can do all this because you are made of cells — tiny units of life that are like specialized factories , full of machinery designed to accomplish the business of life . cells make up every living thing , from blue whales to the archaebacteria that live inside volcanos . just like the organisms they make up , cells ... | why do plant cells have a mitochondria and chloroplast if they do the same thing ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | secretion : some proteins are meant to be secreted from the cell to act on other parts of the body . before these vesicles can fuse with the cell membrane , they must accumulate in number , and require a special chemical signal to be released . this way shipments only go out if they ’ re worth the cost of sending them ... | in the bullet list , how do vesicles get a special chemical signal to approve their transport out of the cell ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | for example , the liver , which is responsible for most of the body ’ s detoxification , has a larger amount of smooth endoplasmic reticulum . golgi apparatus ( aka golgi body aka golgi ) we mentioned the golgi apparatus earlier when we discussed the production of proteins in the rough endoplasmic reticulum . if the sm... | does the golgi complex also direct fatty acids to peroxisomes for decomposition ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | this disease is congenital , and usually fatal before patients reach 7 years of age . an interesting idea is that mitochondria can be used to trace maternal ancestry . since mitochondria are self-replicating and have their own dna , they are not determined by the genes found in the nucleus . | in the er paragraph , what exactly is the lumen and what is it used for ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | in the heart , contraction is mediated through an actin-myosin system . plants and platelets so far we ’ ve covered basic organelles found in a eukaryotic cell . however , not every cell has each of these organelles , and some cells have organelles we haven ’ t discussed . | also , in the paragraph about plants and platelets paragraph , are platelets actually cells if they have no dna and no organelles ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | the shipping department identifies the molecule and sets it on one of 4 paths : cytosol : the proteins that enter the golgi by mistake are sent back into the cytosol ( imagine the barcode scanning wrong and the item being returned ) . cell membrane : proteins destined for the cell membrane are processed continuously . ... | why does a cell have to move ? |
what is a cell right now your body is doing a million things at once . it ’ s sending electrical impulses , pumping blood , filtering urine , digesting food , making protein , storing fat , and that ’ s just the stuff you ’ re not thinking about ! you can do all this because you are made of cells — tiny units of life t... | the shipping department identifies the molecule and sets it on one of 4 paths : cytosol : the proteins that enter the golgi by mistake are sent back into the cytosol ( imagine the barcode scanning wrong and the item being returned ) . cell membrane : proteins destined for the cell membrane are processed continuously . ... | where does the part of the broken down substances that the cell does not use go ? |
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