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introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u...
we will start by considering the simpler case of what happens when a hydrogen atom absorbs light in the visible or uv region of the electromagnetic spectrum . when an atom absorbs an uv photon or a photon of visible light , the energy of that photon can excite one of that atom ’ s electrons to a higher energy level . t...
can light with higher frequency , like xrays and gamma rays , excite an atom 's electron to a higher energy level ?
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u...
the following shows a few examples of the emission spectra for some common elements : since each emission spectrum is unique to the element , we can think of each of these spectra as being like the “ fingerprint ” of each element . the thin bands indicate the particular wavelengths of light emitted when electrons in ea...
for how long does an electron stay in the excited state after being hit by a photon ?
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u...
if you ’ ve ever put food coloring in water , then you already know that the more food coloring you put in , the darker and more colored your solution becomes . when a solution becomes darker , it means that it is absorbing more visible light . one of the most commonly used analytical techniques in chemistry is to plac...
and that continues to happen as long as there is a light source ?
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u...
the following shows a few examples of the emission spectra for some common elements : since each emission spectrum is unique to the element , we can think of each of these spectra as being like the “ fingerprint ” of each element . the thin bands indicate the particular wavelengths of light emitted when electrons in ea...
and also , on more , is the ground state n=2 ?
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u...
however , once the electron is in the excited , higher energy level , it is in a more unstable position than it was when it was in its relaxed , ground state . as such , the electron will quickly fall back down to the lower energy level—and it doing so , it emits a photon with an energy equal to the difference in energ...
maybe it 's implied , but if an electron moves up an energy level when a photon hits it with energy more than needed , but then goes down and emits only the energy equal to the difference of the two levels , would energy be retained by the electron ?
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u...
when an atom absorbs an uv photon or a photon of visible light , the energy of that photon can excite one of that atom ’ s electrons to a higher energy level . this movement of an electron from a lower energy level to a higher energy level , or from a higher energy back down to a lower energy level , is known as a tran...
now when the electron goes back to the lower level , does it release a photon with energy 12j or 15j ?
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u...
( to help visualize all of this , this video on youtube provides an excellent example : https : //www.youtube.com/watch ? v=4jyfi28i928 ) in the diagram above , we have a simplified picture of some of the different energy level transitions possible for our hydrogen atom . note that the larger the transition between ene...
which of the line of lyman series has the lowest energy of light ?
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u...
we will start by considering the simpler case of what happens when a hydrogen atom absorbs light in the visible or uv region of the electromagnetic spectrum . when an atom absorbs an uv photon or a photon of visible light , the energy of that photon can excite one of that atom ’ s electrons to a higher energy level . t...
what happens to the energy of a photon that is absorbed by an electron if it is not great enough to cause a transition ?
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u...
if you ’ ve ever put food coloring in water , then you already know that the more food coloring you put in , the darker and more colored your solution becomes . when a solution becomes darker , it means that it is absorbing more visible light . one of the most commonly used analytical techniques in chemistry is to plac...
why we use photographic film for any other light experiment ?
summary the life history of a species is the pattern of survival and reproduction events typical for a member of the species ( essentially , its lifecycle ) . life history patterns evolve by natural selection , and they represent an `` optimization '' of tradeoffs between growth , survival , and reproduction . one trad...
( not that those are n't good too ! ) instead , when we 're talking about life history in ecology , we 're thinking about basic demographic features of a population or species – the kind of things that would appear in a life table . that includes when organisms first reproduce , how many offspring they have in each rou...
how can you tell from a life table that the population of the organism is iteroparous or semelparous ?
summary the life history of a species is the pattern of survival and reproduction events typical for a member of the species ( essentially , its lifecycle ) . life history patterns evolve by natural selection , and they represent an `` optimization '' of tradeoffs between growth , survival , and reproduction . one trad...
examples of species that display semelparity are bamboo , which flowers once and then dies , and the chinook salmon , which uses most of its energy reserves to migrate from the ocean to its freshwater nesting area , where it reproduces and then dies . iteroparity in iteroparity , individuals of a species reproduce repe...
insects come under semelparity or iteroparity ?
overview the townshend acts , passed in 1767 and 1768 , were designed to raise revenue for the british empire by taxing its north american colonies . they were met with widespread protest in the colonies , especially among merchants in boston . the townshend acts renewed a fierce debate over the british parliament ’ s ...
the purpose of such a committee was to rally opposition to british policies , to educate the townspeople of massachusetts about their constitutional rights and the british threats to those rights , and to encourage townspeople to become more politically active . by 1774 , every colonial assembly had created a committee...
what is the photo of the document above the painting of sam adams ?
overview the townshend acts , passed in 1767 and 1768 , were designed to raise revenue for the british empire by taxing its north american colonies . they were met with widespread protest in the colonies , especially among merchants in boston . the townshend acts renewed a fierce debate over the british parliament ’ s ...
after the seven years ’ war ended in 1763 , leaving the british empire in financial distress , the british parliament sought to fill its coffers by taxing the colonies. $ ^1 $ the stamp act , which levied taxes on all printed material in the north american colonies , had provoked so much unrest that britain was ultimat...
which act was passed first ?
overview the townshend acts , passed in 1767 and 1768 , were designed to raise revenue for the british empire by taxing its north american colonies . they were met with widespread protest in the colonies , especially among merchants in boston . the townshend acts renewed a fierce debate over the british parliament ’ s ...
overview the townshend acts , passed in 1767 and 1768 , were designed to raise revenue for the british empire by taxing its north american colonies . they were met with widespread protest in the colonies , especially among merchants in boston .
can someone give me a timeline of the acts that were passed ?
overview the townshend acts , passed in 1767 and 1768 , were designed to raise revenue for the british empire by taxing its north american colonies . they were met with widespread protest in the colonies , especially among merchants in boston . the townshend acts renewed a fierce debate over the british parliament ’ s ...
the townshend acts were especially reviled in boston , where the customs board was headquartered . merchants in boston signed a nonimportation agreement , which suspended all imports of british goods . merchants in new york and philadelphia followed with their own nonimportation pledges . the british responded by sendi...
why did paul revere sign the nonimportation document ?
overview the townshend acts , passed in 1767 and 1768 , were designed to raise revenue for the british empire by taxing its north american colonies . they were met with widespread protest in the colonies , especially among merchants in boston . the townshend acts renewed a fierce debate over the british parliament ’ s ...
overview the townshend acts , passed in 1767 and 1768 , were designed to raise revenue for the british empire by taxing its north american colonies . they were met with widespread protest in the colonies , especially among merchants in boston .
if not , why was paul revere so special ?
overview the townshend acts , passed in 1767 and 1768 , were designed to raise revenue for the british empire by taxing its north american colonies . they were met with widespread protest in the colonies , especially among merchants in boston . the townshend acts renewed a fierce debate over the british parliament ’ s ...
the colonists protested , “ no taxation without representation , ” arguing that the british parliament did not have the right to tax them because they lacked representation in the legislative body . they asserted that only colonial assemblies elected by themselves should have the power to impose taxes . the british res...
why did the people have a riot over whether the brittish had control over taxes ?
overview the townshend acts , passed in 1767 and 1768 , were designed to raise revenue for the british empire by taxing its north american colonies . they were met with widespread protest in the colonies , especially among merchants in boston . the townshend acts renewed a fierce debate over the british parliament ’ s ...
overview the townshend acts , passed in 1767 and 1768 , were designed to raise revenue for the british empire by taxing its north american colonies . they were met with widespread protest in the colonies , especially among merchants in boston .
what are all the signatures at the end of that document ?
judaism is a monotheistic religion that emerged with the israelites in the eastern mediterranean ( southern levant ) within the context of the mesopotamian river valley civilizations . the israelites were but one nomadic tribe from the area , so named because they considered themselves to be the descendants of jacob , ...
while the hebrew bible is judaism ’ s most sacred text , many of the laws it delineates concern the practice of temple sacrifice and priestly behavior . but when the roman emperor titus sacked jerusalem in response to a revolt of the israelites in 70 c.e. , his armies demolished the temple of jerusalem and brought the ...
how can i re-watch the video ( of the spoils of jerusalem in the arch of titus ?
judaism is a monotheistic religion that emerged with the israelites in the eastern mediterranean ( southern levant ) within the context of the mesopotamian river valley civilizations . the israelites were but one nomadic tribe from the area , so named because they considered themselves to be the descendants of jacob , ...
judaism is a monotheistic religion that emerged with the israelites in the eastern mediterranean ( southern levant ) within the context of the mesopotamian river valley civilizations . the israelites were but one nomadic tribe from the area , so named because they considered themselves to be the descendants of jacob , ...
do we know what its original purpose was ?
judaism is a monotheistic religion that emerged with the israelites in the eastern mediterranean ( southern levant ) within the context of the mesopotamian river valley civilizations . the israelites were but one nomadic tribe from the area , so named because they considered themselves to be the descendants of jacob , ...
judaism is a monotheistic religion that emerged with the israelites in the eastern mediterranean ( southern levant ) within the context of the mesopotamian river valley civilizations . the israelites were but one nomadic tribe from the area , so named because they considered themselves to be the descendants of jacob , ...
would it have been considered art , something to educate the viewer , or perhaps more of a holiday decorative item ?
forget the association of the word `` gothic '' to dark , haunted houses , wuthering heights , or ghostly pale people wearing black nail polish and ripped fishnets . the original gothic style was actually developed to bring sunshine into people 's lives , and especially into their churches . to get past the accrued def...
in the vault , the pointed arch could be seen in three dimensions where the ribbed vaulting met in the center of the ceiling of each bay . this ribbed vaulting is another distinguishing feature of gothic architecture . however , it should be noted that prototypes for the pointed arches and ribbed vaulting were seen fir...
also , did the gothic architecture also reflect on the artwork produced ?
forget the association of the word `` gothic '' to dark , haunted houses , wuthering heights , or ghostly pale people wearing black nail polish and ripped fishnets . the original gothic style was actually developed to bring sunshine into people 's lives , and especially into their churches . to get past the accrued def...
in the vault , the pointed arch could be seen in three dimensions where the ribbed vaulting met in the center of the ceiling of each bay . this ribbed vaulting is another distinguishing feature of gothic architecture . however , it should be noted that prototypes for the pointed arches and ribbed vaulting were seen fir...
what are some additional resources that go into more detail about the mathematics and engineering behind gothic architecture ?
forget the association of the word `` gothic '' to dark , haunted houses , wuthering heights , or ghostly pale people wearing black nail polish and ripped fishnets . the original gothic style was actually developed to bring sunshine into people 's lives , and especially into their churches . to get past the accrued def...
in fact , the column basically continued all the way to the roof , and became part of the vault . in the vault , the pointed arch could be seen in three dimensions where the ribbed vaulting met in the center of the ceiling of each bay . this ribbed vaulting is another distinguishing feature of gothic architecture .
could someone please explain what a `` vault '' is ?
forget the association of the word `` gothic '' to dark , haunted houses , wuthering heights , or ghostly pale people wearing black nail polish and ripped fishnets . the original gothic style was actually developed to bring sunshine into people 's lives , and especially into their churches . to get past the accrued def...
forget the association of the word `` gothic '' to dark , haunted houses , wuthering heights , or ghostly pale people wearing black nail polish and ripped fishnets . the original gothic style was actually developed to bring sunshine into people 's lives , and especially into their churches . to get past the accrued def...
how did the gothic style vary in different parts of europe ?
forget the association of the word `` gothic '' to dark , haunted houses , wuthering heights , or ghostly pale people wearing black nail polish and ripped fishnets . the original gothic style was actually developed to bring sunshine into people 's lives , and especially into their churches . to get past the accrued def...
the slender columns and lighter systems of thrust allowed for larger windows and more light . the windows , tracery , carvings , and ribs make up a dizzying display of decoration that one encounters in a gothic church . in late gothic buildings , almost every surface is decorated . although such a building as a whole i...
for example , what differences were there in gothic cathedrals in germany as compared to france ?
forget the association of the word `` gothic '' to dark , haunted houses , wuthering heights , or ghostly pale people wearing black nail polish and ripped fishnets . the original gothic style was actually developed to bring sunshine into people 's lives , and especially into their churches . to get past the accrued def...
the windows , tracery , carvings , and ribs make up a dizzying display of decoration that one encounters in a gothic church . in late gothic buildings , almost every surface is decorated . although such a building as a whole is ordered and coherent , the profusion of shapes and patterns can make a sense of order diffic...
what helped these buildings stay up so long ?
forget the association of the word `` gothic '' to dark , haunted houses , wuthering heights , or ghostly pale people wearing black nail polish and ripped fishnets . the original gothic style was actually developed to bring sunshine into people 's lives , and especially into their churches . to get past the accrued def...
the style represented giant steps away from the previous , relatively basic building systems that had prevailed . the gothic grew out of the romanesque architectural style , when both prosperity and relative peace allowed for several centuries of cultural development and great building schemes . from roughly 1000 to 14...
comparision between st sernin toulouse ( romanesque ) and reima catherdral ( gothic ) ?
forget the association of the word `` gothic '' to dark , haunted houses , wuthering heights , or ghostly pale people wearing black nail polish and ripped fishnets . the original gothic style was actually developed to bring sunshine into people 's lives , and especially into their churches . to get past the accrued def...
the ribbed vaulting became more complicated and was crossed with lierne ribs into complex webs , or the addition of cross ribs , called tierceron . as the decoration developed further , the perpendicular or international gothic took over ( fifteenth century ) . fan vaulting decorated half-conoid shapes extending from t...
did the gothic period begin around the middle of the 12th century and lasted throughout the 15th century ?
forget the association of the word `` gothic '' to dark , haunted houses , wuthering heights , or ghostly pale people wearing black nail polish and ripped fishnets . the original gothic style was actually developed to bring sunshine into people 's lives , and especially into their churches . to get past the accrued def...
the goths were a so-called barbaric tribe who held power in various regions of europe , between the collapse of the roman empire and the establishment of the holy roman empire ( so , from roughly the fifth to the eighth century ) . they were not renowned for great achievements in architecture . as with many art histori...
does anyone have a list of all styles of architecture ?
forget the association of the word `` gothic '' to dark , haunted houses , wuthering heights , or ghostly pale people wearing black nail polish and ripped fishnets . the original gothic style was actually developed to bring sunshine into people 's lives , and especially into their churches . to get past the accrued def...
in the vault , the pointed arch could be seen in three dimensions where the ribbed vaulting met in the center of the ceiling of each bay . this ribbed vaulting is another distinguishing feature of gothic architecture . however , it should be noted that prototypes for the pointed arches and ribbed vaulting were seen fir...
what is the gothic architecture geographical location ?
forget the association of the word `` gothic '' to dark , haunted houses , wuthering heights , or ghostly pale people wearing black nail polish and ripped fishnets . the original gothic style was actually developed to bring sunshine into people 's lives , and especially into their churches . to get past the accrued def...
forget the association of the word `` gothic '' to dark , haunted houses , wuthering heights , or ghostly pale people wearing black nail polish and ripped fishnets . the original gothic style was actually developed to bring sunshine into people 's lives , and especially into their churches . to get past the accrued def...
how common were gothic churches ?
forget the association of the word `` gothic '' to dark , haunted houses , wuthering heights , or ghostly pale people wearing black nail polish and ripped fishnets . the original gothic style was actually developed to bring sunshine into people 's lives , and especially into their churches . to get past the accrued def...
it is still the term we use today , though hopefully without the implied insult , which negates the amazing leaps of imagination and engineering that were required to build such edifices . essay by valerie spanswick ; images from video footage by richard spanswick additional resources gloucester cathedral salisbury cat...
however , after watching this video , how did your understanding of medieval architecture change , specifically in terms of the design of the amiens cathedral ?
when the french artist marcel duchamp arrived by ship to new york in 1915 , his reputation , as the saying goes , preceded him . two years earlier , in 1913 , after an inauspicious debut in france , duchamp sent his painting nude descending a staircase ( no . 2 ) to america . his now famous depiction of a body in motio...
duchamp turned a venerable subject—the female nude , and all it embodied about western culture and traditions of beauty—into something monstrous and worse , something machine-like . as in his later readymades—which turned ordinary commercial objects into works of art—duchamp embraced the very thing art was supposed to ...
is it fair to say this painting `` embraced the cold logic of industrial production '' ?
overview the achaemenid persian empire first expanded under the leadership of cyrus the great , who utilized a strategy of religious and cultural toleration to maintain order . darius the great further expanded the empire and introduced reforms such as standard currency and satraps—provincial governors—to rule over sma...
cambyses died in 522 bce while returning from egypt to remove this pretender and was succeeded by a general named darius . although darius had a legitimate claim in that he was distantly related to cambyses ii , several other claimants to the persian throne challenged darius . many regions saw the resulting chaos as an...
when it says that darius was distantly related to cambyses ii and that there were other claimants to the throne , what exactly was his relation ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
a centriole is a cylinder of nine triplets of microtubules , held together by supporting proteins . centrioles are best known for their role in centrosomes , structures that act as microtubule organizing centers in animal cells . a centrosome consists of two centrioles oriented at right angles to each other , surrounde...
could someone explain the difference between the centrosome and the centrioles ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
because they are made of actin monomers , microfilaments are also known as actin filaments . actin filaments have directionality , meaning that they have two structurally different ends . actin filaments have a number of important roles in the cell .
what is the difference between polarity and directionality ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
you can see the 9 + 2 array in the electron microscopy image at left , which shows two flagella in cross-section . in flagella and motile cilia , motor proteins called dyneins move along the microtubules , generating a force that causes the flagellum or cilium to beat . the structural connections between the microtubul...
how do the dyneins on the microtubules 'know ' to alternately 'walk ' and then relax to let the other side have a go ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
despite their difference in length and number , flagella and motile cilia share a common structural pattern . in most flagella and motile cilia , there are 9 pairs of microtubules arranged in a circle , along with an additional two microtubules in the center of the ring . this arrangement is called a 9 + 2 array . you ...
flagella an cilia has 9 pairs of microtubules arranged in a circle plus 1 pair in the middle , so why it 's called 9+2 array ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
a centrosome consists of two centrioles oriented at right angles to each other , surrounded by a mass of `` pericentriolar material , '' which provides anchoring sites for microtubules $ ^8 $ . the centrosome is duplicated before a cell divides , and the paired centrosomes seem to play a role in organizing the microtub...
how a cell lacking centrosome divides ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
once the structure has been assembled , it also regulates which proteins can enter or exit $ ^7 $ . the basal body is actually just a modified centriole $ ^7 $ . a centriole is a cylinder of nine triplets of microtubules , held together by supporting proteins .
what is the basal body ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
the structural connections between the microtubule pairs and the coordination of dynein movement allow the activity of the motors to produce a pattern of regular beating $ ^ { 5,6 } $ . you may notice another feature in the diagram above : the cilium or flagellum has a basal body located at its base . the basal body is...
i 've got a few questions about the drawn image of the flagellum or cilium : is the yellow line between the central micro tubuli the same as the `` pericentriolar material '' of the centrosomes ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking .
and what are the red lines and grey stulpings ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking .
are the grey stulpings some kind of lubricant molecules to prevent angular stress between the outer and inner microtubuli ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
microtubules despite the “ micro ” in their name , microtubules are the largest of the three types of cytoskeletal fibers , with a diameter of about 25 nm . a microtubule is made up of tubulin proteins arranged to form a hollow , straw-like tube , and each tubulin protein consists of two subunits , α-tubulin and β-tubu...
because there are 13 polymerized dimers of a a-tubulin and b-tubulin , will there always be an odd number of either one and even number of the other ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
because its relationship to myosin , actin is involved in many cellular events requiring motion . for instance , in animal cell division , a ring made of actin and myosin pinches the cell apart to generate two new daughter cells . actin and myosin are also plentiful in muscle cells , where they form organized structure...
in higher plants there is no centriole present but cell division occur which thing make cell division ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
actin filaments can assemble and disassemble quickly , and this property allows them to play an important role in cell motility ( movement ) , such as the crawling of a white blood cell in your immune system . finally , actin filaments play key structural roles in the cell . in most animal cells , a network of actin fi...
is actin on the same structural level of karatin and collegen but they just make different size and functional things ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
they have a network of filaments known as the cytoskeleton ( literally , “ cell skeleton ” ) , which not only supports the plasma membrane and gives the cell an overall shape , but also aids in the correct positioning of organelles , provides tracks for the transport of vesicles , and ( in many cell types ) allows the ...
does the prokaryotes and the cytoskeleton split to reproduce ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
for example , the cilia of cells in your upper respiratory system help move dust and particles out towards your nostrils . despite their difference in length and number , flagella and motile cilia share a common structural pattern . in most flagella and motile cilia , there are 9 pairs of microtubules arranged in a cir...
what is the difference between cilia and fimbriae ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
flagella , cilia , and centrosomes microtubules are also key components of three more specialized eukaryotic cell structures : flagella , cilia and centrosomes . you may remember that our friends the prokaryotes also have structures have flagella , which they use to move . do n't get confused—the eukaryotic flagella we...
why dont prokaryotes have cytoskeletal fiber ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
this network , which is linked to the plasma membrane by special connector proteins , gives the cell shape and structure $ ^ { 2,3 } $ . intermediate filaments intermediate filaments are a type of cytoskeletal element made of multiple strands of fibrous proteins wound together . as their name suggests , intermediate fi...
when the central rod regions of two intermediate filaments come together , what structure is formed ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
also similar to actin filaments , microtubules have directionality , meaning that they have two ends that are structurally different from one another . in a cell , microtubules play an important structural role , helping the cell resist compression forces . in addition to providing structural support , microtubules pla...
do the microfilaments break the actual cell while microtubules break just the chromosomes ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
however , the exact function of the centrioles in this process still isn ’ t clear . cells with their centrosome removed can still divide , and plant cells , which lack centrosomes , divide just fine .
or are microfilaments only split animal cells while microtubules divide some other kind of cell ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
during cell division , microtubules assemble into a structure called the spindle , which pulls the chromosomes apart . flagella , cilia , and centrosomes microtubules are also key components of three more specialized eukaryotic cell structures : flagella , cilia and centrosomes . you may remember that our friends the p...
what is the main function of the cilia ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
they have a diameter of about 7 nm and are made up of many linked monomers of a protein called actin , combined in a structure that resembles a double helix . because they are made of actin monomers , microfilaments are also known as actin filaments . actin filaments have directionality , meaning that they have two str...
neutrophil 'rolling ' ) regulated just by actin filaments ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
actin filaments can assemble and disassemble quickly , and this property allows them to play an important role in cell motility ( movement ) , such as the crawling of a white blood cell in your immune system . finally , actin filaments play key structural roles in the cell . in most animal cells , a network of actin fi...
what are the key structural differences in the opposite ends of microfilaments and microtubules ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
during cell division , microtubules assemble into a structure called the spindle , which pulls the chromosomes apart . flagella , cilia , and centrosomes microtubules are also key components of three more specialized eukaryotic cell structures : flagella , cilia and centrosomes . you may remember that our friends the p...
what is the function of primary cilia ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
in most flagella and motile cilia , there are 9 pairs of microtubules arranged in a circle , along with an additional two microtubules in the center of the ring . this arrangement is called a 9 + 2 array . you can see the 9 + 2 array in the electron microscopy image at left , which shows two flagella in cross-section .
in addition , what connects the microtubules of the 9+2 array in cilia to each other ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
because they are made of actin monomers , microfilaments are also known as actin filaments . actin filaments have directionality , meaning that they have two structurally different ends . actin filaments have a number of important roles in the cell .
im in 6th grade and was just wondering , is it possible to make ( or have ) more than two categories of cilium ?
introduction what would happen if someone snuck in during the night and stole your skeleton ? just to be clear , that ’ s not very likely to happen , biologically speaking . but if it did somehow happen , the loss of your skeleton would cause your body to lose much of its structure . your external shape would change , ...
during cell division , microtubules assemble into a structure called the spindle , which pulls the chromosomes apart . flagella , cilia , and centrosomes microtubules are also key components of three more specialized eukaryotic cell structures : flagella , cilia and centrosomes . you may remember that our friends the p...
is there really 2 centrosomes ?
perched above a mountain cataract on a rocky hillside deep in the rugged forest of southwestern pennsylvania , some 90 minutes from pittsburgh , is america ’ s most famous house . the commission for fallingwater was a personal milestone for the american architect frank lloyd wright , since it clearly marked a turning p...
then , the bold title across the bottom ‘ fallingwater. ’ a house has to have a name. ” 2 there seems to be agreement that the whole process took about two hours . organic architecture edgar kaufmann jr. pointed out that wright ’ s famous concept of “ organic architecture ” stems from his transcendentalist background ....
is the description of 'fallingwater ' as , `` organic architecture '' universally known as an architectural term ?
perched above a mountain cataract on a rocky hillside deep in the rugged forest of southwestern pennsylvania , some 90 minutes from pittsburgh , is america ’ s most famous house . the commission for fallingwater was a personal milestone for the american architect frank lloyd wright , since it clearly marked a turning p...
we see , for example , inspiration drawn from the balconies of gropius ’ design for the chicago tribune tower competition , though instead of the stark white of the international style , he paints his balconies a warmer , earthen tone in deference to nature and perhaps the adobe dwellings of the american southwest . fa...
what is the name of the photographer who took the photo of fallingwater and also who published it out on time magazine ?
perched above a mountain cataract on a rocky hillside deep in the rugged forest of southwestern pennsylvania , some 90 minutes from pittsburgh , is america ’ s most famous house . the commission for fallingwater was a personal milestone for the american architect frank lloyd wright , since it clearly marked a turning p...
wright was not happy with his client ’ s lack of faith , but permitted an increase in the number and diameter of the structure 's steel reinforcements—kaufmann agreed to proceed . its worth noting that the engineer ’ s warnings later proved valid , an issue that “ haunted ” wright for the rest of his life . wright is f...
does anybody know how the issue with the balconies haunted wright 's career for the rest of his life as the article documents ?
key points : polymerase chain reaction , or pcr , is a technique to make many copies of a specific dna region in vitro ( in a test tube rather than an organism ) . pcr relies on a thermostable dna polymerase , taq polymerase , and requires dna primers designed specifically for the dna region of interest . in pcr , the ...
as we 'll see , high temperature is used repeatedly in pcr to denature the template dna , or separate its strands . pcr primers like other dna polymerases , taq polymerase can only make dna if it 's given a primer , a short sequence of nucleotides that provides a starting point for dna synthesis . in a pcr reaction , t...
when you are looking at the dna ladder and they are a certain thickness does it make a difference when the result is a different thickness ?
key points : polymerase chain reaction , or pcr , is a technique to make many copies of a specific dna region in vitro ( in a test tube rather than an organism ) . pcr relies on a thermostable dna polymerase , taq polymerase , and requires dna primers designed specifically for the dna region of interest . in pcr , the ...
the most commonly used type of markers in forensics , called short tandem repeats ( strs ) , consist of many repeating copies of the same short nucleotide sequence ( typically , $ 2 $ to $ 5 $ nucleotides long ) . one allele of an str might have $ 20 $ repeats , while another might have $ 18 $ , and another just $ 10 $...
what will happen if you add another primer between the two original primers ?
key points : polymerase chain reaction , or pcr , is a technique to make many copies of a specific dna region in vitro ( in a test tube rather than an organism ) . pcr relies on a thermostable dna polymerase , taq polymerase , and requires dna primers designed specifically for the dna region of interest . in pcr , the ...
pcr is used in many areas of biology and medicine , including molecular biology research , medical diagnostics , and even some branches of ecology . taq polymerase like dna replication in an organism , pcr requires a dna polymerase enzyme that makes new strands of dna , using existing strands as templates . the dna pol...
how many dna strands will then be cloned ?
key points : polymerase chain reaction , or pcr , is a technique to make many copies of a specific dna region in vitro ( in a test tube rather than an organism ) . pcr relies on a thermostable dna polymerase , taq polymerase , and requires dna primers designed specifically for the dna region of interest . in pcr , the ...
pcr is used in many areas of biology and medicine , including molecular biology research , medical diagnostics , and even some branches of ecology . taq polymerase like dna replication in an organism , pcr requires a dna polymerase enzyme that makes new strands of dna , using existing strands as templates . the dna pol...
can you just tell me how restriction enzymes act on dna strands ?
key points : polymerase chain reaction , or pcr , is a technique to make many copies of a specific dna region in vitro ( in a test tube rather than an organism ) . pcr relies on a thermostable dna polymerase , taq polymerase , and requires dna primers designed specifically for the dna region of interest . in pcr , the ...
it is routinely used in dna cloning , medical diagnostics , and forensic analysis of dna . what is pcr ? polymerase chain reaction ( pcr ) is a common laboratory technique used to make many copies ( millions or billions ! ) of a particular region of dna .
why are multiple primers used when doing pcr ?
key points : polymerase chain reaction , or pcr , is a technique to make many copies of a specific dna region in vitro ( in a test tube rather than an organism ) . pcr relies on a thermostable dna polymerase , taq polymerase , and requires dna primers designed specifically for the dna region of interest . in pcr , the ...
polymerase chain reaction ( pcr ) is a common laboratory technique used to make many copies ( millions or billions ! ) of a particular region of dna . this dna region can be anything the experimenter is interested in .
how can i identify the specific region of band ?
key points : polymerase chain reaction , or pcr , is a technique to make many copies of a specific dna region in vitro ( in a test tube rather than an organism ) . pcr relies on a thermostable dna polymerase , taq polymerase , and requires dna primers designed specifically for the dna region of interest . in pcr , the ...
it is routinely used in dna cloning , medical diagnostics , and forensic analysis of dna . what is pcr ? polymerase chain reaction ( pcr ) is a common laboratory technique used to make many copies ( millions or billions ! ) of a particular region of dna .
is pcr used for sanger 's method ?
key points : polymerase chain reaction , or pcr , is a technique to make many copies of a specific dna region in vitro ( in a test tube rather than an organism ) . pcr relies on a thermostable dna polymerase , taq polymerase , and requires dna primers designed specifically for the dna region of interest . in pcr , the ...
annealing ( $ 55 $ $ \mbox { - } $ $ 65 $ $ °\text c $ ) : cool the reaction so the primers can bind to their complementary sequences on the single-stranded template dna . extension ( $ 72 °\text c $ ) : raise the reaction temperatures so taq polymerase extends the primers , synthesizing new strands of dna . this cycle...
what would happen if the extension time is longer than it should be ?
key points : polymerase chain reaction , or pcr , is a technique to make many copies of a specific dna region in vitro ( in a test tube rather than an organism ) . pcr relies on a thermostable dna polymerase , taq polymerase , and requires dna primers designed specifically for the dna region of interest . in pcr , the ...
key points : polymerase chain reaction , or pcr , is a technique to make many copies of a specific dna region in vitro ( in a test tube rather than an organism ) . pcr relies on a thermostable dna polymerase , taq polymerase , and requires dna primers designed specifically for the dna region of interest . in pcr , the ...
why does the primer stops after pairing with the required region of dna instead of forming a complete copy of dna ?
key points : polymerase chain reaction , or pcr , is a technique to make many copies of a specific dna region in vitro ( in a test tube rather than an organism ) . pcr relies on a thermostable dna polymerase , taq polymerase , and requires dna primers designed specifically for the dna region of interest . in pcr , the ...
pcr is used in many areas of biology and medicine , including molecular biology research , medical diagnostics , and even some branches of ecology . taq polymerase like dna replication in an organism , pcr requires a dna polymerase enzyme that makes new strands of dna , using existing strands as templates . the dna pol...
in my biol-101 lab , we did not use taq-polymerase and i 'm not sure what was used in place of it ... perhaps rnase ?
key points : polymerase chain reaction , or pcr , is a technique to make many copies of a specific dna region in vitro ( in a test tube rather than an organism ) . pcr relies on a thermostable dna polymerase , taq polymerase , and requires dna primers designed specifically for the dna region of interest . in pcr , the ...
it is routinely used in dna cloning , medical diagnostics , and forensic analysis of dna . what is pcr ? polymerase chain reaction ( pcr ) is a common laboratory technique used to make many copies ( millions or billions ! )
if the pcr sequence is 5'atgcctaggatcatgc3 ' ... then what will be the sequences of the two primers ?
key points : polymerase chain reaction , or pcr , is a technique to make many copies of a specific dna region in vitro ( in a test tube rather than an organism ) . pcr relies on a thermostable dna polymerase , taq polymerase , and requires dna primers designed specifically for the dna region of interest . in pcr , the ...
this is a big part of why pcr is an important tool : it produces enough copies of a dna sequence that we can see or manipulate that region of dna . applications of pcr using pcr , a dna sequence can be amplified millions or billions of times , producing enough dna copies to be analyzed using other techniques . for inst...
how can you use pcr for unknown dna sequence ?
key points : polymerase chain reaction , or pcr , is a technique to make many copies of a specific dna region in vitro ( in a test tube rather than an organism ) . pcr relies on a thermostable dna polymerase , taq polymerase , and requires dna primers designed specifically for the dna region of interest . in pcr , the ...
it is routinely used in dna cloning , medical diagnostics , and forensic analysis of dna . what is pcr ? polymerase chain reaction ( pcr ) is a common laboratory technique used to make many copies ( millions or billions ! )
how can the pcr help to determine the function of gene ?
key points : polymerase chain reaction , or pcr , is a technique to make many copies of a specific dna region in vitro ( in a test tube rather than an organism ) . pcr relies on a thermostable dna polymerase , taq polymerase , and requires dna primers designed specifically for the dna region of interest . in pcr , the ...
in pcr , the reaction is repeatedly cycled through a series of temperature changes , which allow many copies of the target region to be produced . pcr has many research and practical applications . it is routinely used in dna cloning , medical diagnostics , and forensic analysis of dna .
i understand there are many cycles of pcr , but why does the process eventually stop ?
since the 7th century , mosques have been built around the globe . while there are many different types of mosque architecture , three basic forms can be defined . i . the hypostyle mosque it makes sense that the first place of worship for muslims , the house of the prophet muhammad , inspired the earliest type of mosq...
an early mosque in xian , china , uses a very clearly chinese style of architecture ( below , left ) , but also incorporates more typical islamic elements , like squinches and a distinctly islamic-style arched mihrab ( below , right ) . contemporary mosque architecture contemporary mosque architecture often represents ...
how does a mosque decide on these styles ?
since the 7th century , mosques have been built around the globe . while there are many different types of mosque architecture , three basic forms can be defined . i . the hypostyle mosque it makes sense that the first place of worship for muslims , the house of the prophet muhammad , inspired the earliest type of mosq...
in 11th century iran , hypostyle mosques started to be converted into four-iwan mosques , which , as the name indicates , incorporate four iwans in their architectural plan . the great mosque of isfahan reflects this broader development . the mosque began its life as a hypostyle mosque , but was modified by the seljuqs...
is the isfahan mosque painted or set with tiles ?
since the 7th century , mosques have been built around the globe . while there are many different types of mosque architecture , three basic forms can be defined . i . the hypostyle mosque it makes sense that the first place of worship for muslims , the house of the prophet muhammad , inspired the earliest type of mosq...
the mosque was built on a former byzantine site , and the architects repurposed older materials , such as the columns—a decision that was both practical and a powerful assertion of the islamic conquest of byzantine lands . many early mosques like this one made use of older architectural materials ( called spolia ) , in...
how many mosques are there in the usa ?
since the 7th century , mosques have been built around the globe . while there are many different types of mosque architecture , three basic forms can be defined . i . the hypostyle mosque it makes sense that the first place of worship for muslims , the house of the prophet muhammad , inspired the earliest type of mosq...
i . the hypostyle mosque it makes sense that the first place of worship for muslims , the house of the prophet muhammad , inspired the earliest type of mosque - the hypostyle mosque . this type spread widely throughout islamic lands .
it is possible to build up a market over mosque 's place ?
since the 7th century , mosques have been built around the globe . while there are many different types of mosque architecture , three basic forms can be defined . i . the hypostyle mosque it makes sense that the first place of worship for muslims , the house of the prophet muhammad , inspired the earliest type of mosq...
this type spread widely throughout islamic lands . the great mosque of kairouan , tunisia , is an archetypal example of the hypostyle mosque . the mosque was built in the ninth century by ziyadat allah , the third ruler of the aghlabid dynasty , an offshoot of the abbasid empire .
why are the mosque domes in the dallas area predominantly green ?
since the 7th century , mosques have been built around the globe . while there are many different types of mosque architecture , three basic forms can be defined . i . the hypostyle mosque it makes sense that the first place of worship for muslims , the house of the prophet muhammad , inspired the earliest type of mosq...
the ottoman architects were strongly influenced by hagia sophia in istanbul , the greatest of all byzantine churches and one that features a monumental central dome high over its large nave . many ottoman mosques in the late 15th and early 16th centuries referenced hagia sophia ’ s dome ; however , it was not until the...
what is the significance of the crescent moon on top of the domes ?
since the 7th century , mosques have been built around the globe . while there are many different types of mosque architecture , three basic forms can be defined . i . the hypostyle mosque it makes sense that the first place of worship for muslims , the house of the prophet muhammad , inspired the earliest type of mosq...
ii . the four-iwan mosque just as the hypostyle hall defined much of mosque architecture of the early islamic period ; the 11th century shows the emergence of new form : the four-iwan mosque . an iwan is a vaulted space that opens on one side to a courtyard .
anyone has idea about four sloped roof mosque architecture ?
since the 7th century , mosques have been built around the globe . while there are many different types of mosque architecture , three basic forms can be defined . i . the hypostyle mosque it makes sense that the first place of worship for muslims , the house of the prophet muhammad , inspired the earliest type of mosq...
this type spread widely throughout islamic lands . the great mosque of kairouan , tunisia , is an archetypal example of the hypostyle mosque . the mosque was built in the ninth century by ziyadat allah , the third ruler of the aghlabid dynasty , an offshoot of the abbasid empire .
can you tell me about the structure of mosque ?
since the 7th century , mosques have been built around the globe . while there are many different types of mosque architecture , three basic forms can be defined . i . the hypostyle mosque it makes sense that the first place of worship for muslims , the house of the prophet muhammad , inspired the earliest type of mosq...
the djingarey berre mosque of timbuktu , in mali , similarly responds to the pre-islamic traditions of its own region , utilizing a unique west african style and using earth as the primary building material . an early mosque in xian , china , uses a very clearly chinese style of architecture ( below , left ) , but also...
why is the first moque called the hypo style mosque ?
overview muckrakers were journalists and novelists of the progressive era who sought to expose corruption in big business and government . the work of muckrakers influenced the passage of key legislation that strengthened protections for workers and consumers . some of the most famous muckrakers were women , including ...
the public outcry helped lead to the passage of the meat inspection act and pure food and drug act of 1906 , both of which established federal regulatory power over the food and drug industries. $ ^1 $ background to the progressive era the progressive era ( 1890s-1920s ) in us history was a period of intense social and...
what about `` human nature '' did `` progressive reformers '' feel needed changing ?
overview muckrakers were journalists and novelists of the progressive era who sought to expose corruption in big business and government . the work of muckrakers influenced the passage of key legislation that strengthened protections for workers and consumers . some of the most famous muckrakers were women , including ...
overview muckrakers were journalists and novelists of the progressive era who sought to expose corruption in big business and government . the work of muckrakers influenced the passage of key legislation that strengthened protections for workers and consumers .
if muckrakers were historically the people who brought up government/big business corruption , is someone like edward snowden an example of a modern day muckraker ?
overview muckrakers were journalists and novelists of the progressive era who sought to expose corruption in big business and government . the work of muckrakers influenced the passage of key legislation that strengthened protections for workers and consumers . some of the most famous muckrakers were women , including ...
overview muckrakers were journalists and novelists of the progressive era who sought to expose corruption in big business and government . the work of muckrakers influenced the passage of key legislation that strengthened protections for workers and consumers .
what 's the difference between suffragists and suffragettes ?
overview muckrakers were journalists and novelists of the progressive era who sought to expose corruption in big business and government . the work of muckrakers influenced the passage of key legislation that strengthened protections for workers and consumers . some of the most famous muckrakers were women , including ...
overview muckrakers were journalists and novelists of the progressive era who sought to expose corruption in big business and government . the work of muckrakers influenced the passage of key legislation that strengthened protections for workers and consumers .
if muckrakers were historically the people who brought up government/big business corruption , is someone like edward snowden an example of a modern day muckraker ?
overview muckrakers were journalists and novelists of the progressive era who sought to expose corruption in big business and government . the work of muckrakers influenced the passage of key legislation that strengthened protections for workers and consumers . some of the most famous muckrakers were women , including ...
were they successful ? are there any muckrakers today ? if so , who ?
do muckrakers play a part in yellow journalism ?
overview muckrakers were journalists and novelists of the progressive era who sought to expose corruption in big business and government . the work of muckrakers influenced the passage of key legislation that strengthened protections for workers and consumers . some of the most famous muckrakers were women , including ...
the book quickly became a bestseller and established tarbell as an early pioneer of investigative journalism. $ ^5 $ ida b . wells , an african american journalist and suffragist , was another influential female muckraker . she had been born into slavery in mississippi in 1862 , and in the 1890s became involved in anti...
why do we refer to black people as african americans ?
overview muckrakers were journalists and novelists of the progressive era who sought to expose corruption in big business and government . the work of muckrakers influenced the passage of key legislation that strengthened protections for workers and consumers . some of the most famous muckrakers were women , including ...
the book quickly became a bestseller and established tarbell as an early pioneer of investigative journalism. $ ^5 $ ida b . wells , an african american journalist and suffragist , was another influential female muckraker . she had been born into slavery in mississippi in 1862 , and in the 1890s became involved in anti...
would john pilger be classed as a muckraker ?
overview muckrakers were journalists and novelists of the progressive era who sought to expose corruption in big business and government . the work of muckrakers influenced the passage of key legislation that strengthened protections for workers and consumers . some of the most famous muckrakers were women , including ...
overview muckrakers were journalists and novelists of the progressive era who sought to expose corruption in big business and government . the work of muckrakers influenced the passage of key legislation that strengthened protections for workers and consumers .
what 's the difference between suffragists and suffragettes ?
what is anemia anemia means that you have too few red blood cells ( rbcs ) or hemoglobin protein ( hgb ) in your blood . it can also mean that the hematocrit level is low in your blood . remember , red blood cells are each full of hemoglobin , and hemoglobin is the protein that transports oxygen from the lungs to the c...
these diseases can be grouped together into four broad causes of having too few red blood cells ( rbcs ) in blood . | causes | associated diseases | | decreased production of rbcs | aplastic anemia folic acid deficiency iron deficiency anemia kidney disease leukemia and myelodysplastic syndrome thalassemia pernicious a...
so , pernicious anemia is not genetic ?
what is anemia anemia means that you have too few red blood cells ( rbcs ) or hemoglobin protein ( hgb ) in your blood . it can also mean that the hematocrit level is low in your blood . remember , red blood cells are each full of hemoglobin , and hemoglobin is the protein that transports oxygen from the lungs to the c...
how can you prevent anemia ? anemias caused by a deficiency of iron , folate , and vitamin b12 are easy to prevent with the use of vitamin supplements and a healthy diet . other anemias such as sickle cell are genetic and can not be prevented . how do you treat anemia ?
in other words , although it can be caused/exacerbated/remedied by diet , does there still exist a genetic component or predisposition ?
what is anemia anemia means that you have too few red blood cells ( rbcs ) or hemoglobin protein ( hgb ) in your blood . it can also mean that the hematocrit level is low in your blood . remember , red blood cells are each full of hemoglobin , and hemoglobin is the protein that transports oxygen from the lungs to the c...
sickle cell anemia affects 1 in 100 people in africa , but 1 in 3000 in the united states . this is because sickle cell anemia is a genetic disease found in people of african heritage . vegetarians/vegans , pregnant mothers , and alcoholics have an increased risk for nutrient deficiency anemias : vegetarians/vegans hav...
why is sickle celled anemia mostly found in african heritage ?
what is anemia anemia means that you have too few red blood cells ( rbcs ) or hemoglobin protein ( hgb ) in your blood . it can also mean that the hematocrit level is low in your blood . remember , red blood cells are each full of hemoglobin , and hemoglobin is the protein that transports oxygen from the lungs to the c...
anemia is the most common blood disorder affecting 1.6 billion people ( 1 in 4 ) , with young children and pregnant women most at risk . the likelihood you could develop anemia depends on the underlying cause of the anemia . for example : iron deficiency anemia makes up for half of all anemias globally and is more comm...
are there any other factors exept for iron intake with food , i mean could lack of motion , constant depression , etc cause anemia ?
what is anemia anemia means that you have too few red blood cells ( rbcs ) or hemoglobin protein ( hgb ) in your blood . it can also mean that the hematocrit level is low in your blood . remember , red blood cells are each full of hemoglobin , and hemoglobin is the protein that transports oxygen from the lungs to the c...
anemia is the most common blood disorder affecting 1.6 billion people ( 1 in 4 ) , with young children and pregnant women most at risk . the likelihood you could develop anemia depends on the underlying cause of the anemia . for example : iron deficiency anemia makes up for half of all anemias globally and is more comm...
are there any other factors exept for iron intake with food , i mean could lack of motion , constant depression , etc cause anemia ?
what is anemia anemia means that you have too few red blood cells ( rbcs ) or hemoglobin protein ( hgb ) in your blood . it can also mean that the hematocrit level is low in your blood . remember , red blood cells are each full of hemoglobin , and hemoglobin is the protein that transports oxygen from the lungs to the c...
jaundice ) . in iron-defiency anemia , the body is not able to make hemoglobin effectively since each heme contains a bit of iron within it . patients lacking iron sometimes get the strange urge to eat things like dirt , sand , or ice as a result . in pregnant women , the blood gets diluted as blood volume goes up but ...
how could vegetarians receive iron and minerals from their plant based diet ?