The most superior bone of the vertebral column is the atlas, which is denoted as the first cervical vertebra.
The occipital bone of the skull articulates with the atlas, which is situated at the top of the vertebral column and permits head nodding. It is a ring-shaped bone that has no body that helps the head move freely while supporting the weight of the skull.
The most noticeable vertebra in the cervical region is the vertebra prominens, commonly referred to as the seventh cervical vertebra. It is situated close to the base of the neck. The most inferior bone of the vertebral column, commonly referred to as the tailbone, is the coccyx, which is made up of four fused vertebrae.
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b1) did this change in the dna sequence cause any significant change to the protein produced? explain. b2) what is the name of this type of point mutation and why is it referred to by this terminology?
b1) No. b2). Nonsense mutation. It is same amino acid. While mutations always result in a change in the DNA sequence, they do not necessarily have noticeable impact on organism or alter resulting protein.
Since most amino acids can be encoded by two or more distinct codons, this is possible. For instance, the DNA sequences CAA and CAG both code for the amino acid valine. Hence, a valine would still be added to the protein even if the DNA sequence underwent a substitution mutation and changed from CAA to CAG.
A nonsense mutation is a type of point mutation that creates a stop/nonsense codon, thereby shutting down translation. Because doing so would result in the early production of a truncated or ineffective protein.
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think about where proteins are made in the cell. where are almost all amino acids in the cell? g
During translation, the mRNA, which is produced by transcription, is used as a template for the production of a particular protein. Amino acids, the building blocks of proteins, are also found in the cytoplasm of the cell.
Translation occurs in the ribosomes, which are made up of ribosomal RNA and a variety of proteins. Most amino acids are created in the cytoplasm from the breakdown of other molecules, such as glucose or fatty acids.
Amino acids are also taken up from the extracellular environment. After they are taken up, they are modified, assembled, and/or stored as necessary. The proteins produced by the ribosomes are then exported out of the cell or incorporated into other cellular structures.
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What important events take place during prophrase 1
Pollutants only affect specific areas and do not spread through the watershed.truefalse
False. Pollutants can affect specific areas, but they can also spread through the watershed.
Watersheds are interconnected systems where water and pollutants can flow downstream, potentially affecting many areas. Pollutants can be carried by runoff, groundwater, or atmospheric deposition, and can be transported long distances through the watershed. Additionally, some pollutants can accumulate in sediment or biota, leading to the potential for bioaccumulation and biomagnification in the food chain. Therefore, it is important to manage pollutants in watersheds on a holistic basis, taking into account the interconnected nature of these systems and the potential for pollutants to travel and impact downstream areas. Proper management practices such as source control, treatment, and monitoring can help mitigate the spread of pollutants throughout the watershed.
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most applications of biotechnology will come in the fields of a. all of these. b. pharmaceuticals. c. health care. d. agriculture.
Most applications of biotechnology will come in the fields of All of these. The correct option is a.
Biotechnology is a rapidly growing field of science that is used in a variety of industries, including pharmaceuticals, health care, and agriculture. Pharmaceuticals use biotechnology to develop drugs to treat diseases, health care relies on biotechnology to diagnose and treat illnesses, and agriculture benefits from biotechnology through genetic engineering, pest control, and improved crop yields.
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In what phase do chromosomes condense?
The chromosomes happen to condense in the prophase of the cell cycle of the cell.
The cell cycle is the process of cell division in which the cell basically undergoes a few processes in order to divide and form two daughter cells. The cell cycle proceeds through a number of different stages which occur sequentially.
The first step is the prophase. Prophase is the step where the chromosomes basically get condensed. They basically become compact before they enter the next phase of the cell cycle which is the metaphase. The crossing over in the chromosomes also takes place in the prophase of the cell cycle.
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the migration of the mormons to utah would be an example of what type of genetic drift? founder effect bottleneck effect
The migration of Mormons to Utah would be an example of what type of founder effect genetic drift
What is a founder effect?Founder Effect refers to a process that occurs when a small subset of the original population becomes geographically isolated from the majority of the population.
Due to their geographic distance from the rest of the population, this subset of people breeds only among themselves, causing the frequency of certain genetic traits to be more common in this isolated population than in the larger population as a whole.In the case of the Mormon migration to Utah, the founder effect is observed.
When the Mormons first migrated to Utah, they were a small group that settled in a new area. They had limited interaction with the rest of the population, which means that genetic traits that were more common among Mormons were more common in Utah's population over time.
This is known as the founder effect.The bottleneck effect is a situation in which a significant portion of a population is destroyed, resulting in a decrease in the genetic variability of the population. In contrast, founder effect is caused by the isolation of a small group of people from the larger population.
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what are the advantages of having transcription factors to help control transcription, rather than rna polymerase alone?
Transcription is the process in which an RNA is synthesized from a strand of DNA. Transcription factors are proteins that bind to DNA in promoter regions near genes and regulate transcription by activating or repressing RNA polymerase activity.
One of the main advantages of having transcription factors is that they allow more precise regulation of gene expression. Another advantage of having transcription factors is that they allow a rapid response to environmental stimuli or cellular signals.Transcription factors are essential for precise and adaptive regulation of transcription. By enabling a rapid response to changes in the environment and cell signaling, they help ensure that genes are expressed at the right time, in the right place, and in the right amounts.
In conclusion, the presence of transcription factors allows for fine regulation of gene expression and rapid response to changing conditions in the environment and within the cell.
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how is the protective group removed to allow the addition of nucleotides to the probe on the dna chip
The protective group is removed to allow the addition of nucleotides to the probe on the DNA chip by: a process called Deprotection.
This process typically involves the use of a chemical or enzymatic reagent, such as hydrogen bromide, hydrazine, or an acid. The specific reagent used will depend on the type of protective group and will result in the release of the nucleotide from the protective group and the formation of an activated nucleotide ready for use.
Once the protective group has been removed, the nucleotide can be added to the probe on the DNA chip, allowing for the successful detection of the target.
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why are trees found in areas of high precipitation rather than grasses? why are grasses found in drier areas?
Trees require more moisture than grasses, which is why they are found in areas of high precipitation rather than grasses. Trees are better at storing and utilizing water than grasses, so they can survive in areas with more water. Additionally, trees are able to access water deeper in the soil, allowing them to survive longer periods of drought.
Grasses, on the other hand, can survive in drier areas due to their shallow root systems. Grasses also have specialized leaves that are designed to reduce water loss, and their waxy cuticles help keep moisture in. This allows them to survive in arid environments.
In conclusion, trees require more moisture than grasses, making them better suited to areas of high precipitation, while grasses are adapted to drier climates.
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Two plants growing beside one another try to access limited available
sunlight.
What ecological interaction describes the relationship between the two
plants?
Choose 1 answers
B
Competition
Mutualism
Herbivory
Commensalism
Answer:
Competition
Explanation:
They both need sunlight but it is limited so competition rises
which of the following events in a cell would require atp? a.splitting a lipid molecule into smaller parts b.breaking a carbohydrate into individual sugar subunits c.passive movement of molecules through the cell membrane d.linking together amino acids to form a protein
D. Linking together amino acids to form a protein would require ATP.
ATP, or adenosine triphosphate, is the primary energy currency in cells. It is produced during cellular respiration and provides energy for cellular processes that require energy.
What is ATP?
ATP stands for adenosine triphosphate, which is a molecule that serves as the primary energy source for many cellular processes.
When ATP is hydrolyzed, or broken down, by the enzyme ATPase, it releases energy that can be used by cells to power various processes. This hydrolysis reaction breaks the bond between the second and third phosphate groups in ATP, releasing a phosphate group and forming adenosine diphosphate (ADP).
Linking together amino acids to form a protein requires energy, which is provided by ATP. This process is called protein synthesis or translation, and it occurs on ribosomes in the cell. ATP is needed to supply the energy required for the formation of peptide bonds between amino acids, which are the building blocks of proteins.
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middle portion of the small intestine that extends from the duodenum to the ileum.___
The middle portion of the small intestine that extends from the duodenum to the ileum is called the jejunum.
It is approximately 2.5 meters long and is located in the central part of the abdomen, between the duodenum and the ileum. The jejunum is responsible for the majority of nutrient absorption in the small intestine, as it contains a large surface area for absorption due to its circular folds and finger-like projections called villi.
The villi contain microvilli, which further increase the surface area for absorption. The jejunum receives partially digested food from the stomach and continues the process of digestion and absorption before passing the remaining waste to the ileum.
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true or false: most aids-related deaths are not a direct result of hiv, but of other infections that would not normally harm a host with a healthy immune system.
AIDS (Acquired Immunodeficiency Syndrome) is a chronic disease that is caused by the HIV virus. When the immune system is severely damaged, HIV infection can lead to AIDS. AIDS patients are at a high risk of infections that do not normally affect people with healthy immune systems due to the virus's impact on the immune system. Most of the deaths caused by AIDS are a result of other infections that would not harm people with healthy immune systems. Pneumocystis carinii pneumonia, a type of fungal infection, and tuberculosis are two of the most common AIDS-related illnesses. The body's immune system is responsible for keeping us healthy. The immune system is responsible for identifying and fighting off infections, viruses, and other foreign substances that enter the body. When HIV infection progresses to AIDS, the body's immune system is severely weakened, making it difficult to fight off infections. Therefore, the majority of deaths from AIDS are caused by infections that would not typically be fatal to someone with a healthy immune system.
Hence, the statement "most AIDS-related deaths are not a direct result of HIV, but of other infections that would not normally harm a host with a healthy immune system" is True.
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what is the tidal range if the water measures 2 feet at high tide and -1 foot at low tide
High tide & low tide are separated by the tidal range. A tidal range of 3 feet as a result.
In marine biology, what is tidal range?Definition. A tidal cycle's vertical height difference between successive low and high waters is known as the tide range. Across different places and throughout various time intervals, the tide's range varies (Stembridge, 1982).
What kind of tidal ranges exist?The largest tidal range in the world, at 16.3 meters (53.5 feet), is experienced in the Bay of Fundy in Canada. A similar range is also present in Ungava Bay, also in Canada. As in Bristol Channel between Wales and England in the United Kingdom, tidal ranges of up to 15 meters (49 feet) are frequently experienced.
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which of the following is common to both factor-dependent and factor-independent transcription termination? a. both types of termination occur following a pause by the polymerase b. both types of termination are associated with rho termination factor c. both types of termination involve sigma protein d. all of the above
The following is common to both factor-dependent and factor-independent transcription termination is both types of termination occur following a pause by the polymerase
Factor-dependent and factor-independent are the two types of transcription termination. In factor-independent transcription termination, a DNA sequence containing a GC-rich inverted repeat is essential. The sequence can be followed by a stretch of T's, which are complementary to the A's in the transcript. When a polymerase reaches the terminator sequence, the RNA polymerase transcribes the inverted repeat sequence. As a result, the mRNA folds back on itself, forming a hairpin structure. The formation of a hairpin loop causes the RNA polymerase to pause, resulting in termination.
On the other hand, factor-dependent transcription termination is based on a specific termination factor, Rho. Rho is a protein that binds to the mRNA and travels along it. As the RNA polymerase approaches a termination site, Rho binds to the RNA and triggers the termination process. Therefore, the two transcription termination types have different mechanisms. The only common feature of the two transcription termination types is that they occur following a pause by the polymerase. This is what the two transcription termination types have in common.
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the of a human begins with the production of gametes by and the consecutive growth of the organism because of .
The life cycle of a human begins with the production of gametes by meiosis and the consecutive growth of the organism because of mitosis.
Meiosis is a cell division process that occurs in sexually reproducing organisms. It occurs in the reproductive organs of animals, the ovaries in females and the testes in males, and in the reproductive structures of plants. Meiosis is a process that reduces the number of chromosomes in a cell by half in preparation for fertilization.
Mitosis is the process by which a cell divides to produce two identical daughter cells. Mitosis is a fundamental process in the growth and development of multicellular organisms. During mitosis, the cell's nucleus divides, and the chromosomes are separated into two identical sets of chromosomes, each in its own nucleus. Mitosis plays a significant role in the growth and development of multicellular organisms.
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how does the body decrease the blood vessel radius? how does the body decrease the blood vessel radius? vasodilation vasoconstriction cardiac muscle contraction valve closure
The body decreases the blood vessel radius by vasoconstriction.
A blood vessel is a tubular structure that transports blood throughout the body. Blood vessels are divided into three types: arteries, veins, and capillaries.
The heart pumps blood into the arteries, which then branch off into smaller arterioles that supply the capillaries.
Vasoconstriction is the process by which blood vessels constrict or narrow their diameter, increasing vascular resistance and decreasing blood flow.
It helps to control blood pressure and redirect blood flow to areas of the body that require it more urgently than other areas.
Blood vessels can constrict to various degrees, depending on the needs of the body. Vasoconstriction can be caused by a variety of factors, including hormones, drugs, and neurotransmitters.
For example, the hormone norepinephrine causes vasoconstriction by activating alpha-adrenergic receptors on the smooth muscle cells of blood vessels.
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describe the specific dna changes that produce the abnormal cystic fibrosis protein (the delta f508 mutation).
The Delta F508 mutation in the CFTR gene is the most common cause of cystic fibrosis. This mutation involves a small deletion of three nucleotides (TGG) in the CFTR gene, resulting in a single point mutation. This mutation leads to the deletion of one amino acid, phenylalanine, from the CFTR protein, resulting in an inability to transport chloride ions across the cell membrane.
This deletion results in a change in the CFTR protein structure and ultimately an inability to transport chloride ions across the cell membrane. This abnormality leads to the buildup of thick, sticky mucus in the lungs and other organs, as well as other symptoms of cystic fibrosis.
In order to create this Delta F508 mutation, three nucleotides of the DNA must be deleted from the gene. Specifically, a TGG triplet must be removed from the DNA strand, resulting in a single point mutation in the CFTR gene.
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a common way for cells to capture the energy released during the breakdown of large molecules is to add electrons to smaller, specialized molecules that can accept them. this process of electron acceptance is known as
This process of electron acceptance is known as oxidation-reduction (or redox) reactions.
Oxidation-reduction (or redox) reactions are a type of chemical reaction in which electrons are transferred between two different molecules. The molecule which accepts the electrons is known as the oxidizing agent, and the molecule which donates the electrons is known as the reducing agent.
During redox reactions, energy is released in the form of heat, light, and sound, and this energy is captured by cells to produce ATP, the molecule which provides energy to the cell. Redox reactions involve the breaking of chemical bonds and formation of new ones, resulting in the creation of new molecules. This process is essential for the production of energy and is used by cells to fuel all of their metabolic processes.
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which of the choices below determines the direction of respiratory gas movement? which of the choices below determines the direction of respiratory gas movement? the temperature solubility in water molecular weight and size of the gas molecule partial pressure gradient
From the given options d.partial pressure gradient determines the direction of respiratory gas movement
The partial pressure gradient of the gases is what drives the flow of respiratory gases like oxygen and carbon dioxide between the lungs and blood as well as between the blood and tissues. The pressure that a gas would apply if it were the only gas in the volume that the other gases are occupying is known as the partial pressure of a gas.
The partial pressure gradient, which applies to respiratory gases, is the variation in the partial pressure of the gas between two places, such as between the blood and the tissues or between the blood and the alveoli of the lungs. Until the partial pressures are equal, respiratory gases always migrate down their partial pressure gradient from an area of higher partial pressure to an area of lower partial pressure.
Complete Question:
which of the choices below determines the direction of respiratory gas movement?
a. the temperature solubility in water
b. molecular weight
c. size of the gas molecule
d. partial pressure gradient
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1. are the spores produced by the moss sporophyte formed by meiosis or mitosis? are they haploid or diploid? 2. do the spores belong to the gametophyte or sporophyte generation?
1. The spores produced by the moss sporophyte are formed by meiosis. They are haploid.
2. The spores belong to the sporophyte generation.
What are spores? Spores are asexual reproductive units that are generated by bacteria, fungi, algae, and plants, among other organisms.
What is the sporophyte? A sporophyte is a diploid plant that, in its life cycle, undergoes the procedure of meiosis to produce haploid spores. The sporophyte phase is a stage in the lifecycle of higher plants that alternates with the gametophyte phase.
What is meiosis? Meiosis is a process of cell division that reduces the number of chromosomes in a cell by half, producing four genetically distinct haploid daughter cells.
What is mitosis? Mitosis is a process of cell division that results in the creation of two genetically identical daughter cells from a single parent cell.
What is a haploid? In the genetic sense, haploid refers to a cell or an organism that has just one set of chromosomes, which implies that the organism or cell is genetically unique.
What is diploid? Diploid refers to an organism or a cell that has two sets of chromosomes, one from each parent. The chromosome count of a diploid cell is generally represented as 2n, where n is the number of chromosomes.
What is a gametophyte? A gametophyte is a haploid multicellular phase in the life cycle of a plant or algae that generate gametes, which are used in sexual reproduction.
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5) Students were asked to relate the rock cycle to dinosaur fossil formation. Which
flowchart best represents the process that formed the dinosaur fossils in Mississippi?
(A) Compaction and cementation of sedimentary rock occurs. Dinosaur remains are
deposited in sediments.
(B) Dinosaur remains are deposited in sediments.
Compaction and cementation of
sedimentary rock occurs.
(C) Heat and pressure convert metamorphic rock to sedimentary rock. Dinosaur
remains are deposited in metamorphic rock.
(D) Dinosaur remains are deposited in metamorphic rock. Heat and pressure convert
metamorphic rock to sedimentary rock.
The flowchart in (B) "Dinosaur remains are deposited in sediments" best illustrates the formation of the dinosaur fossils in Mississippi. Rock made of silt is compacted and cemented.
How are fossilised dinosaurs created?The most typical form of fossilisation takes place soon after an animal dies when it is buried under sediment, like sand or silt. Sedimentary deposits shield its bones from decaying.
What type of granite is home to dinosaur fossils?Sedimentary sediments contain fossils that can be used as a guide to the history of life on Earth. Limestone: Without boulders like me, you people would know so little. After all, sedimentary rocks contain remains of extinct creatures like dinosaurs and woolly mammoths.
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What 2 things does the North Star tell us about our location? 9th grade integrated science
which sequence of metabolic paths could a carbon atom take to go from a molecule of glucose to a molecule of dna?
The conversion of glucose to DNA involves several metabolic pathways. A carbon atom from a molecule of glucose can take the metabolic pathways of glycolysis, pyruvate dehydrogenase, the citric acid cycle, aconitase, and thymidine synthetase to reach a molecule of DNA.
A carbon atom from a molecule of glucose can take a few different metabolic pathways to reach a molecule of DNA. First, it would have to be converted to pyruvate, a three-carbon molecule, by glycolysis. This would then be converted to Acetyl-CoA by the enzyme pyruvate dehydrogenase. Acetyl-CoA then enters the citric acid cycle, in which it combines with oxaloacetate to form citrate, a six-carbon molecule. Finally, citrate is converted to a five-carbon molecule, alpha-ketoglutarate, by the enzyme aconitase. Alpha-ketoglutarate is then converted to the four-carbon molecule succinyl-CoA, which is then converted to a molecule of DNA by the enzyme thymidine synthetase.
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what modification occurs to retinoblastoma that will push the cell through the restriction checkpoint?
Answer:
The modification that occurs to retinoblastoma that will push the cell through the restriction checkpoint is its phosphorylation. This allows the cell to move from G1 to S phase of the cell cycle.
What is Retinoblastoma?
Retinoblastoma is a type of cancer that grows in the retina of the eye. This cancer is one of the rarest forms of cancer and mostly affects children. The condition starts in the cells that develop into retina cells. The retina is the light-sensitive tissue located at the back of the eye.
Modification of Retinoblastoma:
The retinoblastoma protein, or pRB, regulates the progression of the cell cycle from G1 phase to S phase by binding to the transcription factor E2F. When pRB is hypophosphorylated, it prevents E2F from binding to the promoter regions of genes required for DNA replication, resulting in a G1 cell cycle arrest or checkpoint.
The phosphorylation of the RB protein enables the cell to cross the restriction checkpoint and progress from G1 to S phase of the cell cycle. This phosphorylation is carried out by the cyclin-dependent kinases (CDKs), which phosphorylate several different sites on the RB protein.
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Use the codon wheel To figure out which amino acids these codon code for.
Answer:
see below
Explanation:
AUG - methionineUCC - serine CAC - histidine ACA - threonine GUU - valine UGG - tryptophan CCC - prolineGGG - glycine_______________________________________
Related information:-
Features of genetic code:-
The code is degenerate as some of the amino acids are coded by more than one codon.The code is universal, like in every organism UCC will code for serine .AUG is the start codon, it acts as initiator .UAG , UGA , UAA do not code for any amino acids thus acts as stop codon .So , in total 61 codons code for amino acids and 3 act as stop codon.________________________________________
which electron microscope technique below is used to image the surfaces of objects ranging in size from a virus to an animals head
The electron microscope technique used to image the surfaces of objects ranging in size from a virus to an animal's head is scanning electron microscopy (SEM).
Electron microscopy is a technique for imaging specimens utilizing a beam of electrons instead of visible light.
Electron microscopes can achieve much higher magnification and resolution than conventional optical microscopes because they utilize electrons instead of light.
The Scanning electron microscope (SEM) is one of the most commonly utilized types of an electron microscope. SEM is a method of imaging the surfaces of specimens utilizing an electron beam, and it is well-suited for examining a wide range of samples, from single cells ,viruses to an animal's head
It is used to study samples in a variety of scientific fields, including biology, chemistry, and physics, among others.
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Coral skeletal structures are built out of calcium carbonate, also known as __________.
Answer:
limestone
Explanation:
.
Coral skeletal structures are built out of calcium carbonate, also known as calcite. Calcium carbonate is a naturally occurring mineral that has various forms like calcite, aragonite, and vaterite.
It is a crystalline solid with no taste or odor, and its unique properties like high melting point, hardness, and water absorption make it useful in various industrial and commercial applications.
Calcium carbonate is abundant in the Earth's crust, found in rocks, limestone, and marble, as well as in the shells of marine creatures such as mollusks and crabs, and coral skeletal structures.
This versatile substance has many uses, including industrial applications like water treatment, cement production, and papermaking, as well as nutritional supplements, ceramics, plastics, and paint production.
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Select the correct statement about absorptiona. 30% ingested materials have been absorbed by the end of the large intestine.b. carbohydrates diffuse across the villus epithelium and are then passively transported into blood capillaries.c. if intact fats are transported across the villus epithelium, an immune response may be generated.d. Amino acid transport is linked to sodium transport.The answer could be one choice or multiple choices
The correct statement(s) about absorption is (D) Amino acid transport is linked to sodium transport.
Amino acids are transported across the villus epithelium in the small intestine, and this process is linked to sodium transport.
Amino acids, not proteins, are absorbed; proteins rely on prior digestion to amino acids. Most absorption of amino acids occurs in the jejunum; there is a lesser contribution from the ileum.
Amino acids are absorbed by a co-transport mechanism with sodium ions. Both sodium ion and amino acid combine with a cell surface protein receptor.
There are different receptors for the groups: neutral amino acids, basic amino acids, acidic amino acids
In addition, certain amino acids may have there own specific transporter e.g. proline. The receptor then conveys both molecules to the inside of the cell.
The energy for this transport is derived from the concentration gradient for sodium across the cell membrane. Na-K ATPase transporters actively and continuously pump sodium ions outwards to maintain the gradient.
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