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it 's kind of annoying to have to draw a graph every time we want to find the slope of a line , is n't it ? we can avoid this by writing a general formula for slope . before we start , let 's remember how slope is defined : $ \text { slope } = \dfrac { \goldd { \text { change in y } } } { { \greend { \text { change in ... | before we start , let 's remember how slope is defined : $ \text { slope } = \dfrac { \goldd { \text { change in y } } } { { \greend { \text { change in x } } } } $ let 's draw a line through two general points $ ( \greend { x_1 } , \goldd { y_1 } ) $ and $ ( \greend { x_2 } , \goldd { y_2 } ) $ . an expression for $ \... | why do we always take change in y over change in x ? |
it 's kind of annoying to have to draw a graph every time we want to find the slope of a line , is n't it ? we can avoid this by writing a general formula for slope . before we start , let 's remember how slope is defined : $ \text { slope } = \dfrac { \goldd { \text { change in y } } } { { \greend { \text { change in ... | we did it ! using the slope formula let 's use the slope formula to find the slope of the line that goes through the points $ ( 2,1 ) $ and $ ( 4 , 7 ) $ . step 1 : identify the values of $ x_1 $ , $ x_2 $ , $ y_1 $ , and $ y_2 $ . | why is the slope formula y/x ? |
it 's kind of annoying to have to draw a graph every time we want to find the slope of a line , is n't it ? we can avoid this by writing a general formula for slope . before we start , let 's remember how slope is defined : $ \text { slope } = \dfrac { \goldd { \text { change in y } } } { { \greend { \text { change in ... | we did it ! using the slope formula let 's use the slope formula to find the slope of the line that goes through the points $ ( 2,1 ) $ and $ ( 4 , 7 ) $ . step 1 : identify the values of $ x_1 $ , $ x_2 $ , $ y_1 $ , and $ y_2 $ . | in the very last part , why is the formula for slope delta y/delta x instead of delta x/ delta y ? |
it 's kind of annoying to have to draw a graph every time we want to find the slope of a line , is n't it ? we can avoid this by writing a general formula for slope . before we start , let 's remember how slope is defined : $ \text { slope } = \dfrac { \goldd { \text { change in y } } } { { \greend { \text { change in ... | we did it ! using the slope formula let 's use the slope formula to find the slope of the line that goes through the points $ ( 2,1 ) $ and $ ( 4 , 7 ) $ . step 1 : identify the values of $ x_1 $ , $ x_2 $ , $ y_1 $ , and $ y_2 $ . | in the formula mx+b=y , i understand that `` m '' is the slope and `` b '' is the y-intercept , but what is x and y ? |
it 's kind of annoying to have to draw a graph every time we want to find the slope of a line , is n't it ? we can avoid this by writing a general formula for slope . before we start , let 's remember how slope is defined : $ \text { slope } = \dfrac { \goldd { \text { change in y } } } { { \greend { \text { change in ... | let 's practice ! something to think about what happens in the slope formula when $ x_2 = x_1 $ ? as a reminder , here is the slope formula : $ \text { slope } = \dfrac { y_2 - y_1 } { x_2 - x_1 } $ feel free to discuss in the comments below ! | what happens when y2 = y1 ? |
it 's kind of annoying to have to draw a graph every time we want to find the slope of a line , is n't it ? we can avoid this by writing a general formula for slope . before we start , let 's remember how slope is defined : $ \text { slope } = \dfrac { \goldd { \text { change in y } } } { { \greend { \text { change in ... | we did it ! using the slope formula let 's use the slope formula to find the slope of the line that goes through the points $ ( 2,1 ) $ and $ ( 4 , 7 ) $ . step 1 : identify the values of $ x_1 $ , $ x_2 $ , $ y_1 $ , and $ y_2 $ . | so , the truth is , we can not use the integer divided by 0 am i correct ? |
it 's kind of annoying to have to draw a graph every time we want to find the slope of a line , is n't it ? we can avoid this by writing a general formula for slope . before we start , let 's remember how slope is defined : $ \text { slope } = \dfrac { \goldd { \text { change in y } } } { { \greend { \text { change in ... | we did it ! using the slope formula let 's use the slope formula to find the slope of the line that goes through the points $ ( 2,1 ) $ and $ ( 4 , 7 ) $ . step 1 : identify the values of $ x_1 $ , $ x_2 $ , $ y_1 $ , and $ y_2 $ . | is the slope formula equivalent to y=mx+b ? |
it 's kind of annoying to have to draw a graph every time we want to find the slope of a line , is n't it ? we can avoid this by writing a general formula for slope . before we start , let 's remember how slope is defined : $ \text { slope } = \dfrac { \goldd { \text { change in y } } } { { \greend { \text { change in ... | we did it ! using the slope formula let 's use the slope formula to find the slope of the line that goes through the points $ ( 2,1 ) $ and $ ( 4 , 7 ) $ . step 1 : identify the values of $ x_1 $ , $ x_2 $ , $ y_1 $ , and $ y_2 $ . | or is the slope formula equivalent to the value of variable m ? |
it 's kind of annoying to have to draw a graph every time we want to find the slope of a line , is n't it ? we can avoid this by writing a general formula for slope . before we start , let 's remember how slope is defined : $ \text { slope } = \dfrac { \goldd { \text { change in y } } } { { \greend { \text { change in ... | before we start , let 's remember how slope is defined : $ \text { slope } = \dfrac { \goldd { \text { change in y } } } { { \greend { \text { change in x } } } } $ let 's draw a line through two general points $ ( \greend { x_1 } , \goldd { y_1 } ) $ and $ ( \greend { x_2 } , \goldd { y_2 } ) $ . an expression for $ \... | why do we always take change in y over change in x why not vice versa ? |
it 's kind of annoying to have to draw a graph every time we want to find the slope of a line , is n't it ? we can avoid this by writing a general formula for slope . before we start , let 's remember how slope is defined : $ \text { slope } = \dfrac { \goldd { \text { change in y } } } { { \greend { \text { change in ... | it 's kind of annoying to have to draw a graph every time we want to find the slope of a line , is n't it ? we can avoid this by writing a general formula for slope . | is x2 always larger than x1 ? |
it 's kind of annoying to have to draw a graph every time we want to find the slope of a line , is n't it ? we can avoid this by writing a general formula for slope . before we start , let 's remember how slope is defined : $ \text { slope } = \dfrac { \goldd { \text { change in y } } } { { \greend { \text { change in ... | $ \text { slope } = \dfrac { y_2 - y_1 } { x_2 - x_1 } = \dfrac { 7 - 1 } { 4 - 2 } = \dfrac62 = 3 $ step 3 : gut check . make sure this slope makes sense by thinking about the points on the coordinate plane . yup ! | does the order of the two points matter ? |
it 's kind of annoying to have to draw a graph every time we want to find the slope of a line , is n't it ? we can avoid this by writing a general formula for slope . before we start , let 's remember how slope is defined : $ \text { slope } = \dfrac { \goldd { \text { change in y } } } { { \greend { \text { change in ... | this slope seems to make sense since the slope is positive , and the line is increasing . using the slope formula walkthrough let 's use the slope formula to find the slope of the line that goes through the points $ ( 6 , -3 ) $ and $ ( 1 , 7 ) $ . step 1 : identify the values of $ x_1 $ , $ x_2 $ , $ y_1 $ , and $ y_2... | in the `` using the slope formula walkthrough '' section , how do know which point to assign each variable to ? |
it 's kind of annoying to have to draw a graph every time we want to find the slope of a line , is n't it ? we can avoid this by writing a general formula for slope . before we start , let 's remember how slope is defined : $ \text { slope } = \dfrac { \goldd { \text { change in y } } } { { \greend { \text { change in ... | it 's kind of annoying to have to draw a graph every time we want to find the slope of a line , is n't it ? we can avoid this by writing a general formula for slope . | so x2 will never be equal to x1 ? |
overview in the postwar era , many americans moved away from cities and into suburbs , helped by gi bill benefits that guarantied home loans . techniques of mass production made it possible to build homes faster and cheaper than ever before . using an assembly-line system , the construction firm levitt and sons built t... | what do you think ? are the gi bill benefits that financed suburban housing similar to new deal programs , or different from them ? why ? | are the gi bill benefits that financed suburban housing similar to new deal programs , or different from them , why ? |
overview in the postwar era , many americans moved away from cities and into suburbs , helped by gi bill benefits that guarantied home loans . techniques of mass production made it possible to build homes faster and cheaper than ever before . using an assembly-line system , the construction firm levitt and sons built t... | overview in the postwar era , many americans moved away from cities and into suburbs , helped by gi bill benefits that guarantied home loans . techniques of mass production made it possible to build homes faster and cheaper than ever before . | where did the term keeping up with the jonses come from ? |
overview in the postwar era , many americans moved away from cities and into suburbs , helped by gi bill benefits that guarantied home loans . techniques of mass production made it possible to build homes faster and cheaper than ever before . using an assembly-line system , the construction firm levitt and sons built t... | why ? do you think the assembly-line techniques used to build levittown houses were a positive or negative development overall ? consider the impact on construction workers , families , and prices . | is levittown an actual place , a phrase , or both ? |
overview in the postwar era , many americans moved away from cities and into suburbs , helped by gi bill benefits that guarantied home loans . techniques of mass production made it possible to build homes faster and cheaper than ever before . using an assembly-line system , the construction firm levitt and sons built t... | due to low prices and veterans ' benefits , more americans could afford to own homes than ever before . suburbia in the postwar era the american dream : 2.5 kids , a dog , and a house with a white-picket fence . it 's one of the most iconic and enduring images in american culture , the object of both praise ( as eviden... | if this was the time of the baby boom , why does the `` american dream '' that kim wrote of say only 2.5 kids ? |
overview in the postwar era , many americans moved away from cities and into suburbs , helped by gi bill benefits that guarantied home loans . techniques of mass production made it possible to build homes faster and cheaper than ever before . using an assembly-line system , the construction firm levitt and sons built t... | why ? do you think the assembly-line techniques used to build levittown houses were a positive or negative development overall ? consider the impact on construction workers , families , and prices . | what does levittown looks like today ? |
introduction you can sometimes have too much of a good thing . for instance , consider ice cream sandwiches . maybe you really like ice cream sandwiches and buy a bunch of them at the store . if you ’ re very hungry , that might be a good choice : you can eat them all quickly , before they melt . if you ’ re only a lit... | binding of a regulator to the allosteric site of an enzyme changes its structure , making it more or less active . the molecules that bind cellular respiration enzymes act as signals , giving the enzyme information about the cell 's energy state . atp , adp , and nadh are examples of molecules that regulate cellular re... | can someone tell me if cellular respiration is similar to photosynthesis ? |
introduction you can sometimes have too much of a good thing . for instance , consider ice cream sandwiches . maybe you really like ice cream sandwiches and buy a bunch of them at the store . if you ’ re very hungry , that might be a good choice : you can eat them all quickly , before they melt . if you ’ re only a lit... | if citrate builds up , this is a sign that glycolysis can slow down , because the citric acid cycle is backed up and doesn ’ t need more fuel . pyruvate oxidation the next key control point comes after glycolysis , when pyruvate is converted to acetyl coa . this conversion step is irreversible in many organisms and con... | in this entire cellular respiration section , i have n't been able to figure this out : if the anaerobic glycolysis occurs , does pyruvate oxidation and the krebs cycle continue ? |
introduction you can sometimes have too much of a good thing . for instance , consider ice cream sandwiches . maybe you really like ice cream sandwiches and buy a bunch of them at the store . if you ’ re very hungry , that might be a good choice : you can eat them all quickly , before they melt . if you ’ re only a lit... | this is a case of feedback inhibition , in which a product `` feeds back '' to shut down its pathway . regulation of glycolysis several steps in glycolysis are regulated , but the most important control point is the third step of the pathway , which is catalyzed by an enzyme called phosphofructokinase ( pfk ) . this re... | or are the last 3 steps only able to occur with aerobic glycolysis ? |
introduction you can sometimes have too much of a good thing . for instance , consider ice cream sandwiches . maybe you really like ice cream sandwiches and buy a bunch of them at the store . if you ’ re very hungry , that might be a good choice : you can eat them all quickly , before they melt . if you ’ re only a lit... | pfk is regulated by atp , an adp derivative called amp , and citrate , as well as some other molecules we wo n't discuss here . atp . atp is a negative regulator of pfk , which makes sense : if there is already plenty of atp in the cell , glycolysis does not need to make more . | why is it essential that the enzymes that catalyze steps 1 and 2 are not inhibited when atp concentrations are high ? |
introduction you can sometimes have too much of a good thing . for instance , consider ice cream sandwiches . maybe you really like ice cream sandwiches and buy a bunch of them at the store . if you ’ re very hungry , that might be a good choice : you can eat them all quickly , before they melt . if you ’ re only a lit... | this ensures that acetyl coa is made only when it ’ s needed ( and when there 's plenty of pyruvate available ) $ ^4 $ . citric acid cycle entry into the citric acid cycle is largely controlled through pyruvate dehydrogenase ( above ) , the enzyme that produces acetyl coa . however , there are two additional steps in t... | why ca n't cells in anaerobic conditions enter the krebs cycle ? |
introduction you can sometimes have too much of a good thing . for instance , consider ice cream sandwiches . maybe you really like ice cream sandwiches and buy a bunch of them at the store . if you ’ re very hungry , that might be a good choice : you can eat them all quickly , before they melt . if you ’ re only a lit... | adenosine monophosphate ( amp ) is a positive regulator of pfk . when a cell is very low on atp , it will start squeezing more atp out of adp molecules by converting them to atp and amp ( adp + adp $ \rightarrow $ atp + amp ) . high levels of amp mean that the cell is starved for energy , and that glycolysis must run q... | so , does the cell mistakenly use adp in place of atp when it 's low on the latter ? |
introduction you can sometimes have too much of a good thing . for instance , consider ice cream sandwiches . maybe you really like ice cream sandwiches and buy a bunch of them at the store . if you ’ re very hungry , that might be a good choice : you can eat them all quickly , before they melt . if you ’ re only a lit... | adenosine monophosphate ( amp ) is a positive regulator of pfk . when a cell is very low on atp , it will start squeezing more atp out of adp molecules by converting them to atp and amp ( adp + adp $ \rightarrow $ atp + amp ) . high levels of amp mean that the cell is starved for energy , and that glycolysis must run q... | how does cell know the concentration of atp , adp etc ? |
introduction you can sometimes have too much of a good thing . for instance , consider ice cream sandwiches . maybe you really like ice cream sandwiches and buy a bunch of them at the store . if you ’ re very hungry , that might be a good choice : you can eat them all quickly , before they melt . if you ’ re only a lit... | atp and nadh make this enzyme less active , while adp makes it more active . so , more acetyl coa is made when energy stores are low . pyruvate dehydrogenase is also activated by its substrate , pyruvate , and inhibited by its product , acetyl coa . | if the acetyl-coa was n't functional in a plant cell , what would the specific outcome be ? |
introduction you can sometimes have too much of a good thing . for instance , consider ice cream sandwiches . maybe you really like ice cream sandwiches and buy a bunch of them at the store . if you ’ re very hungry , that might be a good choice : you can eat them all quickly , before they melt . if you ’ re only a lit... | high levels of amp mean that the cell is starved for energy , and that glycolysis must run quickly to replenish atp $ ^2 $ . citrate . citrate , the first product of the citric acid cycle , can also inhibit pfk . | how does citrate come out of the mitochondria ? |
introduction you can sometimes have too much of a good thing . for instance , consider ice cream sandwiches . maybe you really like ice cream sandwiches and buy a bunch of them at the store . if you ’ re very hungry , that might be a good choice : you can eat them all quickly , before they melt . if you ’ re only a lit... | binding of a regulator to the allosteric site of an enzyme changes its structure , making it more or less active . the molecules that bind cellular respiration enzymes act as signals , giving the enzyme information about the cell 's energy state . atp , adp , and nadh are examples of molecules that regulate cellular re... | what does n't fermentation require that cellular respiration does require ? |
a landscape transformed in red and white plum blossoms , ogata kôrin transforms a very simple landscape theme—two flowering trees on either side of a brook—into a dream vision . executed in black ink and blotchy washes of gem-like mineral color on a pair of folding screens , the image seems both abstract and realistic ... | entranced by a few of sôtatsu ’ s paintings that he saw in the collection of a patron , kôrin taught himself the techniques : images pared to bare essentials and then dramatically magnified , emphasis on the interplay of forms , colors , and textures , and unconventional adaptations of ink painting methods . these meth... | what exact methods were used for this piece ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | that 's a feat `` geometrically equivalent to packing $ 40 $ km ( $ 24 $ miles ) of extremely fine thread into a tennis ball '' $ ^4 $ ! ribosomes as mentioned above , ribosomes are the molecular machines responsible for protein synthesis . a ribosome is made out of rna and proteins , and each ribosome consists of two ... | are translation and protein synthesis the same thing ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | eukaryotic dna never leaves the nucleus ; instead , it ’ s transcribed ( copied ) into rna molecules , which may then travel out of the nucleus . in the cytosol , some rnas associate with structures called ribosomes , where they direct synthesis of proteins . ( other rnas play functional roles in the cell , serving as ... | can we compare nucleoplasm to cytosol ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | how do you make a ribosome ? some chromosomes have sections of dna that encode ribosomal rna , a type of structural rna that combines with proteins to make the ribosome . in the nucleolus , new ribosomal rna combines with proteins to form the subunits of the ribosome . | what does the 'deoxy ' prefix to the full name of dna signify , in contrast to rna ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | how do you make a ribosome ? some chromosomes have sections of dna that encode ribosomal rna , a type of structural rna that combines with proteins to make the ribosome . in the nucleolus , new ribosomal rna combines with proteins to form the subunits of the ribosome . | so if rna contains uracil instead of thymine as a base pair for adenine as in dna , but it is sections of dna that encode rna production ... .what process leads to uracil replacing thymine in the rna production process ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | ribosomes as mentioned above , ribosomes are the molecular machines responsible for protein synthesis . a ribosome is made out of rna and proteins , and each ribosome consists of two separate rna-protein complexes , known as the small and large subunits . the large subunit sits on top of the small subunit , with an rna... | what is rna made of ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | every eukaryotic species has a specific number of chromosomes in the nuclei of its body ’ s cells . for example , a typical human body cell would have $ 46 $ chromosomes , while a comparable fruit fly cell would have $ 8 $ . chromosomes are only visible as distinct structures when the cell is getting ready to divide . | i always thought it was the second one , but why would we state everywhere that we have 46 chromosomes , while this would only be for the shorter period of the cells lifecycle ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | because protein synthesis is an essential function of all cells , ribosomes are found in practically every cell type of multicellular organisms , as well as in prokaryotes such as bacteria . however , eukaryotic cells that specialize in producing proteins have particularly large numbers of ribosomes . for example , the... | if human body has 37.2 trillion cells and as far as i know a large amount of them have ribosomes to synthesize their own proteins then why do we need to consume it ourselves externally through food ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | that 's a feat `` geometrically equivalent to packing $ 40 $ km ( $ 24 $ miles ) of extremely fine thread into a tennis ball '' $ ^4 $ ! ribosomes as mentioned above , ribosomes are the molecular machines responsible for protein synthesis . a ribosome is made out of rna and proteins , and each ribosome consists of two ... | what is role of rrnain protein synthesis ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | that 's a feat `` geometrically equivalent to packing $ 40 $ km ( $ 24 $ miles ) of extremely fine thread into a tennis ball '' $ ^4 $ ! ribosomes as mentioned above , ribosomes are the molecular machines responsible for protein synthesis . a ribosome is made out of rna and proteins , and each ribosome consists of two ... | what is function of ribosomes ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | how do you make a ribosome ? some chromosomes have sections of dna that encode ribosomal rna , a type of structural rna that combines with proteins to make the ribosome . in the nucleolus , new ribosomal rna combines with proteins to form the subunits of the ribosome . | what does `` rna '' stand for ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | in fact , that ’ s exactly what eukaryotic cells do with their genetic material , placing it in a membrane-enclosed repository called the nucleus . eukaryotic dna never leaves the nucleus ; instead , it ’ s transcribed ( copied ) into rna molecules , which may then travel out of the nucleus . in the cytosol , some rnas... | what is the importance of nucleus ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | the complex formed by dna and its supporting structural proteins is known as chromatin . you can learn more about dna , chromatin , and chromosomes in the dna and chromosomes article . to give you a sense of just how important dna packing is , consider that the dna in a typical human cell would be about $ 2 $ meters lo... | how many chromosomes are in the nucleus ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | some cell types have more than one nucleolus inside the nucleus . for instance , some mouse cells have up to $ 6 $ nucleoli $ ^1 $ . prokaryotes , which do not have a nucleus , do n't have nucleoli and build their ribosomes in the cytosol . | this is an extremely random question , but is it possible that an organism can have plant cells and animal cells ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | ribosomes as mentioned above , ribosomes are the molecular machines responsible for protein synthesis . a ribosome is made out of rna and proteins , and each ribosome consists of two separate rna-protein complexes , known as the small and large subunits . the large subunit sits on top of the small subunit , with an rna... | is rrna mixed in the small sub unit and large sub unit , or is it in between ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | the newly made subunits are transported out through the nuclear pores to the cytoplasm , where they can do their job . some cell types have more than one nucleolus inside the nucleus . for instance , some mouse cells have up to $ 6 $ nucleoli $ ^1 $ . | in the diagram above , is trna inside the large sub unit ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | ribosomes as mentioned above , ribosomes are the molecular machines responsible for protein synthesis . a ribosome is made out of rna and proteins , and each ribosome consists of two separate rna-protein complexes , known as the small and large subunits . the large subunit sits on top of the small subunit , with an rna... | is mrna in between small and large sub unit ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | how do you make a ribosome ? some chromosomes have sections of dna that encode ribosomal rna , a type of structural rna that combines with proteins to make the ribosome . in the nucleolus , new ribosomal rna combines with proteins to form the subunits of the ribosome . | what does dna and rna stand for ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | it ’ s a blueprint for an entire organism – you – and it not only specifies how to put you together , but also provides the information that enables every cell in your body to keep functioning from moment to moment . sounds important , right ? you ’ d probably want to keep information this valuable in a secure spot , p... | i do n't get it why is the dna so important and why does it have to be guarded ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | the newly made subunits are transported out through the nuclear pores to the cytoplasm , where they can do their job . some cell types have more than one nucleolus inside the nucleus . for instance , some mouse cells have up to $ 6 $ nucleoli $ ^1 $ . | i 'd like to inquire : why are the chromosomes inside of a cell tangled up instead of in straight lines ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | every eukaryotic species has a specific number of chromosomes in the nuclei of its body ’ s cells . for example , a typical human body cell would have $ 46 $ chromosomes , while a comparable fruit fly cell would have $ 8 $ . chromosomes are only visible as distinct structures when the cell is getting ready to divide . | if the chromosomes were straight , what difference would that make ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | eukaryotic ribosomes may be either free , meaning that they are floating around in the cytoplasm , or bound , meaning that they are attached to the endoplasmic reticulum or the outside of the nuclear envelope . ( in the first diagram in this article , the red dots represent bound ribosomes ; endoplasmic reticulum with ... | what is the difference between rough and smooth er ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | this process is called translation . prokaryotes lack a nucleus , so their mrnas are transcribed in the cytoplasm and can be translated by ribosomes immediately . eukaryotic ribosomes may be either free , meaning that they are floating around in the cytoplasm , or bound , meaning that they are attached to the endoplasm... | what causes prokaryotes like bacteria to multiply so quickly compared to eukaryotic cells -- is it the lack of the mrna transport step , or the nucleus of eukaryotes just works slower because it 's specialized , or something else ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | that 's a feat `` geometrically equivalent to packing $ 40 $ km ( $ 24 $ miles ) of extremely fine thread into a tennis ball '' $ ^4 $ ! ribosomes as mentioned above , ribosomes are the molecular machines responsible for protein synthesis . a ribosome is made out of rna and proteins , and each ribosome consists of two ... | is a protein an enzyme or is an enzyme a type of protein ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | the complex formed by dna and its supporting structural proteins is known as chromatin . you can learn more about dna , chromatin , and chromosomes in the dna and chromosomes article . to give you a sense of just how important dna packing is , consider that the dna in a typical human cell would be about $ 2 $ meters lo... | if chromosomes are made out of/contained in chromatin ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | every eukaryotic species has a specific number of chromosomes in the nuclei of its body ’ s cells . for example , a typical human body cell would have $ 46 $ chromosomes , while a comparable fruit fly cell would have $ 8 $ . chromosomes are only visible as distinct structures when the cell is getting ready to divide . | how would we define a chromosome ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | because protein synthesis is an essential function of all cells , ribosomes are found in practically every cell type of multicellular organisms , as well as in prokaryotes such as bacteria . however , eukaryotic cells that specialize in producing proteins have particularly large numbers of ribosomes . for example , the... | what happens to the proteins once they have been synthesized by the ribosomes ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | that 's a feat `` geometrically equivalent to packing $ 40 $ km ( $ 24 $ miles ) of extremely fine thread into a tennis ball '' $ ^4 $ ! ribosomes as mentioned above , ribosomes are the molecular machines responsible for protein synthesis . a ribosome is made out of rna and proteins , and each ribosome consists of two ... | what are non translating ribosomes ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | an mrna travels to the ribosome , which uses the information it contains to build a protein with a specific amino acid sequence . this process is called translation . prokaryotes lack a nucleus , so their mrnas are transcribed in the cytoplasm and can be translated by ribosomes immediately . | why dna from the nucleus is not used directly by the ribosome for the translation process ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | that 's a feat `` geometrically equivalent to packing $ 40 $ km ( $ 24 $ miles ) of extremely fine thread into a tennis ball '' $ ^4 $ ! ribosomes as mentioned above , ribosomes are the molecular machines responsible for protein synthesis . a ribosome is made out of rna and proteins , and each ribosome consists of two ... | when does protein synthesis occur ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | this darkly staining region is called the nucleolus , and it ’ s the site in which new ribosomes are assembled . how do you make a ribosome ? some chromosomes have sections of dna that encode ribosomal rna , a type of structural rna that combines with proteins to make the ribosome . | how does the malfunction of the ribosome affect the other organelles ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | in fact , that ’ s exactly what eukaryotic cells do with their genetic material , placing it in a membrane-enclosed repository called the nucleus . eukaryotic dna never leaves the nucleus ; instead , it ’ s transcribed ( copied ) into rna molecules , which may then travel out of the nucleus . in the cytosol , some rnas... | why do you think dna is located in the nucleus ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | inside the nucleus , chromatin ( dna wrapped around proteins , described further below ) is stored in a gel-like substance called nucleoplasm . enclosing the nucleoplasm is the nuclear envelope , which is made up of two layers of membrane : an outer membrane and an inner membrane . each of these membranes contains two ... | how ribosomes exit from nucleus as nuclear membrane is selectively permeable membrane ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | ( a ribosome looks a little like a hamburger with a puffy bun on top , an rna “ patty ” threading through it . ) in eukaryotes , ribosomes get their orders for protein synthesis from the nucleus , where portions of dna ( genes ) are transcribed to make messenger rnas ( mrnas ) . an mrna travels to the ribosome , which ... | can ribosomes be found in nucleus in eukaryotes ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | how do you make a ribosome ? some chromosomes have sections of dna that encode ribosomal rna , a type of structural rna that combines with proteins to make the ribosome . in the nucleolus , new ribosomal rna combines with proteins to form the subunits of the ribosome . | i think it would be messy all those dna nucleotides and rna nucleotides together highly functioning but prokaryotes can survive with that , ca n't they ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | that 's a feat `` geometrically equivalent to packing $ 40 $ km ( $ 24 $ miles ) of extremely fine thread into a tennis ball '' $ ^4 $ ! ribosomes as mentioned above , ribosomes are the molecular machines responsible for protein synthesis . a ribosome is made out of rna and proteins , and each ribosome consists of two ... | are all protein that exist in chromosomes , in plasma membrane , and in ribosomes it self coming from the other ribosomes ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | in fact , that ’ s exactly what eukaryotic cells do with their genetic material , placing it in a membrane-enclosed repository called the nucleus . eukaryotic dna never leaves the nucleus ; instead , it ’ s transcribed ( copied ) into rna molecules , which may then travel out of the nucleus . in the cytosol , some rnas... | or is there an actual reason for being placed in the heart if the nucleus ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | in fact , that ’ s exactly what eukaryotic cells do with their genetic material , placing it in a membrane-enclosed repository called the nucleus . eukaryotic dna never leaves the nucleus ; instead , it ’ s transcribed ( copied ) into rna molecules , which may then travel out of the nucleus . in the cytosol , some rnas... | what determines what portion of the dna is transcribed onto/into rna ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | how do you make a ribosome ? some chromosomes have sections of dna that encode ribosomal rna , a type of structural rna that combines with proteins to make the ribosome . in the nucleolus , new ribosomal rna combines with proteins to form the subunits of the ribosome . | can there be rna that are complete copies of the full dna ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | prokaryotes lack a nucleus , so their mrnas are transcribed in the cytoplasm and can be translated by ribosomes immediately . eukaryotic ribosomes may be either free , meaning that they are floating around in the cytoplasm , or bound , meaning that they are attached to the endoplasmic reticulum or the outside of the nu... | do the mrna that are bound to the nuclear envelope serve a different purpose that the free floating ones ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | in fact , that ’ s exactly what eukaryotic cells do with their genetic material , placing it in a membrane-enclosed repository called the nucleus . eukaryotic dna never leaves the nucleus ; instead , it ’ s transcribed ( copied ) into rna molecules , which may then travel out of the nucleus . in the cytosol , some rnas... | where in the nucleus are mrna for ribosomal proteins transcribed ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | eukaryotic ribosomes may be either free , meaning that they are floating around in the cytoplasm , or bound , meaning that they are attached to the endoplasmic reticulum or the outside of the nuclear envelope . ( in the first diagram in this article , the red dots represent bound ribosomes ; endoplasmic reticulum with ... | - why do some proteins need to enter the endoplasmic reticulum if they 're going to leave the cell ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | how do you make a ribosome ? some chromosomes have sections of dna that encode ribosomal rna , a type of structural rna that combines with proteins to make the ribosome . in the nucleolus , new ribosomal rna combines with proteins to form the subunits of the ribosome . the newly made subunits are transported out throug... | what is the full form of rna ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | most of an organism ’ s dna is organized into one or more chromosomes , each of which is a very long string or loop of dna . a single chromosome can carry many different genes . in prokaryotes , dna is typically organized into a single circular chromosome ( a loop ) . | what is role of chromosome in eukaryotes for reproduction ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | inside the nucleus , chromatin ( dna wrapped around proteins , described further below ) is stored in a gel-like substance called nucleoplasm . enclosing the nucleoplasm is the nuclear envelope , which is made up of two layers of membrane : an outer membrane and an inner membrane . each of these membranes contains two ... | would dna directly interact with ribosome in the absence of membrane ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | in fact , that ’ s exactly what eukaryotic cells do with their genetic material , placing it in a membrane-enclosed repository called the nucleus . eukaryotic dna never leaves the nucleus ; instead , it ’ s transcribed ( copied ) into rna molecules , which may then travel out of the nucleus . in the cytosol , some rnas... | such as in prokaryote , will dna still be transcribed into rna ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | how do you make a ribosome ? some chromosomes have sections of dna that encode ribosomal rna , a type of structural rna that combines with proteins to make the ribosome . in the nucleolus , new ribosomal rna combines with proteins to form the subunits of the ribosome . | in rna what does the a t c g stand for ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | eukaryotic ribosomes may be either free , meaning that they are floating around in the cytoplasm , or bound , meaning that they are attached to the endoplasmic reticulum or the outside of the nuclear envelope . ( in the first diagram in this article , the red dots represent bound ribosomes ; endoplasmic reticulum with ... | how come the endoplasmic reticulum does n't completely surround the nucleus ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | that 's a feat `` geometrically equivalent to packing $ 40 $ km ( $ 24 $ miles ) of extremely fine thread into a tennis ball '' $ ^4 $ ! ribosomes as mentioned above , ribosomes are the molecular machines responsible for protein synthesis . a ribosome is made out of rna and proteins , and each ribosome consists of two ... | what is the function of ribosomes , where are they located in the cell ( three places ) , and what types of proteins to the different localized ribosomes produce ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | there ’ s a thin space between the two layers of the nuclear envelope , and this space is directly connected to the interior of another membranous organelle , the endoplasmic reticulum . nuclear pores , small channels that span the nuclear envelope , let substances enter and exit the nucleus . each pore is lined by a s... | is it not true that the anything has to travel through nuclear pores to enter/exit the nucleus ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | eukaryotic ribosomes may be either free , meaning that they are floating around in the cytoplasm , or bound , meaning that they are attached to the endoplasmic reticulum or the outside of the nuclear envelope . ( in the first diagram in this article , the red dots represent bound ribosomes ; endoplasmic reticulum with ... | what is the function of the endoplasmic reticulum ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | in both their loose and compact forms , the dna strands of chromosomes are bound to structural proteins , including a family of proteins called histones ( see picture below ) . these dna-associated proteins organize the dna and help it fit into the nucleus , and they also play a role in determining which genes are acti... | is the nucleolus a section of the dna that deals specially with ribosome synthesis or is this just a minor confusion with greater concequences ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | how do you make a ribosome ? some chromosomes have sections of dna that encode ribosomal rna , a type of structural rna that combines with proteins to make the ribosome . in the nucleolus , new ribosomal rna combines with proteins to form the subunits of the ribosome . | what does rna stand for ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | some cell types have more than one nucleolus inside the nucleus . for instance , some mouse cells have up to $ 6 $ nucleoli $ ^1 $ . prokaryotes , which do not have a nucleus , do n't have nucleoli and build their ribosomes in the cytosol . | what kind of cells made up muscle cells ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | each pore is lined by a set of proteins , called the nuclear pore complex , that control what molecules can go in or out . if you look at a microscope image of the nucleus , you may notice – depending on the type of stain used to visualize the cell – that there ’ s a dark spot inside it . this darkly staining region is... | when you look inside a microscope what is the dark spot you see inside the cell ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | there ’ s a thin space between the two layers of the nuclear envelope , and this space is directly connected to the interior of another membranous organelle , the endoplasmic reticulum . nuclear pores , small channels that span the nuclear envelope , let substances enter and exit the nucleus . each pore is lined by a s... | is the nuclear envelope and the nuclear membrane the same thing ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | that 's a feat `` geometrically equivalent to packing $ 40 $ km ( $ 24 $ miles ) of extremely fine thread into a tennis ball '' $ ^4 $ ! ribosomes as mentioned above , ribosomes are the molecular machines responsible for protein synthesis . a ribosome is made out of rna and proteins , and each ribosome consists of two ... | are translation and protein synthesis the same thing ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | because protein synthesis is an essential function of all cells , ribosomes are found in practically every cell type of multicellular organisms , as well as in prokaryotes such as bacteria . however , eukaryotic cells that specialize in producing proteins have particularly large numbers of ribosomes . for example , the... | where do proteins go after being manufactured within the ribosomes ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | in fact , that ’ s exactly what eukaryotic cells do with their genetic material , placing it in a membrane-enclosed repository called the nucleus . eukaryotic dna never leaves the nucleus ; instead , it ’ s transcribed ( copied ) into rna molecules , which may then travel out of the nucleus . in the cytosol , some rnas... | it says that the eukaryotic dna never leaves the nucleus , but what about during cell division ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | how do you make a ribosome ? some chromosomes have sections of dna that encode ribosomal rna , a type of structural rna that combines with proteins to make the ribosome . in the nucleolus , new ribosomal rna combines with proteins to form the subunits of the ribosome . | what does rna stand for ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | the newly made subunits are transported out through the nuclear pores to the cytoplasm , where they can do their job . some cell types have more than one nucleolus inside the nucleus . for instance , some mouse cells have up to $ 6 $ nucleoli $ ^1 $ . | what is the contribution nucleolus makes ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | how do you make a ribosome ? some chromosomes have sections of dna that encode ribosomal rna , a type of structural rna that combines with proteins to make the ribosome . in the nucleolus , new ribosomal rna combines with proteins to form the subunits of the ribosome . | how many rna is in our bodies ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | there ’ s a thin space between the two layers of the nuclear envelope , and this space is directly connected to the interior of another membranous organelle , the endoplasmic reticulum . nuclear pores , small channels that span the nuclear envelope , let substances enter and exit the nucleus . each pore is lined by a s... | in the second paragraph of the nucleus , are the nuclear envelop and nuclear membrane the same things ? |
introduction suppose that you have a very precious piece of information . let ’ s imagine that this piece of information is a blueprint . in fact , it ’ s not just a blueprint for a house , or a car , or even a top-secret fighter jet . it ’ s a blueprint for an entire organism – you – and it not only specifies how to p... | that 's a feat `` geometrically equivalent to packing $ 40 $ km ( $ 24 $ miles ) of extremely fine thread into a tennis ball '' $ ^4 $ ! ribosomes as mentioned above , ribosomes are the molecular machines responsible for protein synthesis . a ribosome is made out of rna and proteins , and each ribosome consists of two ... | what came first the ribosome or the protein ? |
the relationship between liturgy and architecture—between worship and the space in which it occurs—has a rich history in the christian tradition . its roots go back well before the emergence of christianity to origins in jewish worship . the term “ liturgy ” is from a greek word that means “ public service ” or “ work ... | thomas j. doig and e. ann matter , eds . the liturgy of the medieval church , 2nd ed . ( kalamazoo , mi : medieval institute publications , 2005 ) . | did the colors of the medieval church have any specific meaning or was it just random painting ? |
the relationship between liturgy and architecture—between worship and the space in which it occurs—has a rich history in the christian tradition . its roots go back well before the emergence of christianity to origins in jewish worship . the term “ liturgy ” is from a greek word that means “ public service ” or “ work ... | before the year 313 c.e. , when the emperor constantine legalized christianity with the edict of milan , christian worship occurred in homes , at grave sites of saints and loved ones , and even outdoors . one of the earliest existing churches ( dating to about 254 c.e . ) is found at dura europos , a roman outpost in s... | where the peasants not welcomed into the more fancy churches at the time or was everybody welcome ? |
the relationship between liturgy and architecture—between worship and the space in which it occurs—has a rich history in the christian tradition . its roots go back well before the emergence of christianity to origins in jewish worship . the term “ liturgy ” is from a greek word that means “ public service ” or “ work ... | jewish origins as described in the jewish bible ( exodus 25-31 ) , during their exile in the desert , the israelites made sacrifices to god in the tabernacle , which was a huge moveable tent . in a large outer court , they made sacrifices , and they burned incense in an inner chamber , dubbed the “ holy of holies. ” th... | did the author research the ark of the covenant ? |
the relationship between liturgy and architecture—between worship and the space in which it occurs—has a rich history in the christian tradition . its roots go back well before the emergence of christianity to origins in jewish worship . the term “ liturgy ” is from a greek word that means “ public service ” or “ work ... | although made of stone , the temple had a similar layout as the tabernacle . this temple was destroyed in 586 b.c.e . and was replaced by the second temple ( now the location of the dome of the rock in jerusalem , image below ) . | so after the temple of jews was destroyed they stopped making sacrifices to god ? |
the relationship between liturgy and architecture—between worship and the space in which it occurs—has a rich history in the christian tradition . its roots go back well before the emergence of christianity to origins in jewish worship . the term “ liturgy ” is from a greek word that means “ public service ” or “ work ... | biblical passages such as revelation 21:9-21 , which describes a vision of an angel measuring the city of the heavenly jerusalem , inspired medieval christians to ascribe spiritual significance to the dimensions and proportions of church architecture . revelation 21:9-21 is illustrated , for example , in the eleventh-c... | did anyone else notice that in the beatus of liebana 's commentary on the apocalypse the angels standing in the gates are very diverse ( in terms of skin color ) ? |
the relationship between liturgy and architecture—between worship and the space in which it occurs—has a rich history in the christian tradition . its roots go back well before the emergence of christianity to origins in jewish worship . the term “ liturgy ” is from a greek word that means “ public service ” or “ work ... | before the year 313 c.e. , when the emperor constantine legalized christianity with the edict of milan , christian worship occurred in homes , at grave sites of saints and loved ones , and even outdoors . one of the earliest existing churches ( dating to about 254 c.e . ) is found at dura europos , a roman outpost in s... | how long did it take to build some of these huge churches ? |
overview : cellular response cell signaling pathways vary a lot . signals ( a.k.a . ligands ) and receptors come in many varieties , and binding can trigger a wide range of signal relay cascades inside the cell , from short and simple to long and complex . despite these differences , signaling pathways share a common g... | in this article , we 'll look at examples of cellular responses to signaling that happen at both the `` micro '' and `` macro '' levels . gene expression many signaling pathways cause a cellular response that involves a change in gene expression . gene expression is the process in which information from a gene is used ... | about gene expression , do the transcription alterations of factors such as c-myc pass on the daughter cells of future generations ? |
overview : cellular response cell signaling pathways vary a lot . signals ( a.k.a . ligands ) and receptors come in many varieties , and binding can trigger a wide range of signal relay cascades inside the cell , from short and simple to long and complex . despite these differences , signaling pathways share a common g... | similarly , epinephrine triggers the activation of glycogen phosphorylase and the breakdown of glycogen in order to provide a muscle cell with fuel for a rapid response . other important large-scale outcomes of cell signaling include cell migration , changes in cell identity , and induction of apoptosis ( programmed ce... | or is there a reversion mechanic before the cell goes into mitosis ? |
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