Neurotransmitters are usually released into synapses by __________.
Answers
Neurotransmitters are usually released into synapses by axon terminals. Neurotransmitters are molecules that are generated in the nerve cells and they play a vital role in the transmission of signals across a synapse.
They are responsible for transmission of signals from one neuron to another, or to an effector cell. Neurotransmitters are synthesized within the nerve cell body, and they are then transported down the axon to the axon terminal. When an action potential reaches the axon terminal, the neurotransmitters are then released into the synapse. The neurotransmitters move across the synapse by diffusion and then they bind to the receptors located on the postsynaptic cell.
The effect that the neurotransmitters will have on the postsynaptic cell is determined by the type of receptor that they bind to. The axon terminal has small round structures known as synaptic vesicles that contain the neurotransmitters. When the action potential reaches the axon terminal, the voltage-gated calcium channels will open, and calcium will enter the axon terminal. The calcium ions then trigger the synaptic vesicles to release the neurotransmitters into the synaptic cleft.
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Related Questions
which fruit contains the most amount of potassium per 100 g? banana apple kiwi blueberry
Answers
The fruit that contains the most amount of potassium per 100g is Kiwi.
Kiwi is known for its high potassium content, making it an excellent choice for individuals looking to increase their potassium intake.
Potassium is an essential mineral that plays a vital role in various bodily functions, including maintaining proper heart function, regulating blood pressure, supporting nerve function, and promoting muscle contractions. Adequate potassium intake is important for overall health and well-being.
It's worth noting that potassium levels may vary slightly depending on factors such as fruit size, and cultivation conditions. However, based on general averages, kiwi stands out as the fruit with the highest potassium content among the given options.
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Legume plant roots are colonized by _____ to form root nodules.
Answers
Legume plant roots are colonized by nitrogen-fixing bacteria to form root nodules.
Which bacteria is responsible for root nodule formation in legume plant?Rhizobium is a type of bacteria that is responsible for root nodule formation in legume plants. Rhizobium is a genus of Gram-negative, soil-dwelling bacteria that contain nitrogen-fixing properties.These bacteria colonize the roots of leguminous plants, forming a symbiotic relationship with the plant in which both benefit. The bacteria are able to convert atmospheric nitrogen into ammonia, which can then be used by the plant as a source of nitrogen and other nutrient molecules.In exchange, the plant provides the bacteria with a source of energy and protection from the surrounding environment. The nodules are visible and often have a pinkish-red color due to the presence of leghemoglobin, a protein produced by the bacteria to help protect them from oxygen.Inside these nodules, the bacteria fix atmospheric nitrogen into ammonia, which is then used by the plant for further growth and development. The use of Rhizobium-inoculated legumes has been shown to increase crop yields by up to 30% in some cultivated fields.To learn more about nitrogen-fixing bacteria refer :
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Legume plant roots are colonized by nitrogen-fixing bacteria to form root nodules.
Which bacteria is responsible for root nodule formation in legume plant?Rhizobium is a type of bacteria that is responsible for root nodule formation in legume plants. Rhizobium is a genus of Gram-negative, soil-dwelling bacteria that contain nitrogen-fixing properties.These bacteria colonize the roots of leguminous plants, forming a symbiotic relationship with the plant in which both benefit. The bacteria are able to convert atmospheric nitrogen into ammonia, which can then be used by the plant as a source of nitrogen and other nutrient molecules.In exchange, the plant provides the bacteria with a source of energy and protection from the surrounding environment. The nodules are visible and often have a pinkish-red color due to the presence of leghemoglobin, a protein produced by the bacteria to help protect them from oxygen.Inside these nodules, the bacteria fix atmospheric nitrogen into ammonia, which is then used by the plant for further growth and development.The use of Rhizobium-inoculated legumes has been shown to increase crop yields by up to 30% in some cultivated fields.To learn more about nitrogen-fixing bacteria refer :
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one functional center found within the medulla oblongata is a respiratory center involved in the control of the rate and depth of breathing. true or false
Answers
True. The medulla oblongata contains a respiratory center that plays a crucial role in controlling the rate and depth of breathing.
The medulla oblongata, located at the base of the brainstem, is responsible for regulating various vital functions, including breathing. Within the medulla oblongata, there is a specific region known as the respiratory center, which is involved in controlling the rate and depth of breathing.
The respiratory center consists of a network of neurons that receive sensory input from chemoreceptors, which detect changes in blood oxygen and carbon dioxide levels, as well as other respiratory-related receptors. Based on these inputs, the respiratory center adjusts the activity of the respiratory muscles, such as the diaphragm and intercostal muscles, to regulate the breathing pattern.
The respiratory center in the medulla oblongata plays a crucial role in maintaining the appropriate levels of oxygen and carbon dioxide in the body. It responds to changes in blood gas concentrations to initiate the necessary adjustments in breathing rate and depth, ensuring adequate gas exchange in the lungs and supporting overall respiratory function.
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Using the Karvonen Method, what is the target heart rate range for an 18-year-old with a resting heart rate of 60 who wants to work between 60 and 80 percent of her maximum heart rate? (6 Points) Heart Rat Max (HRmax) Target Heart Rate - 60 % ( THR 60%) Heart Rate Reserve (HRR) Target Heart Rate - 80% (THR 80%)
Answers
The target heart rate range for an 18-year-old with a resting heart rate of 60 who wants to work between 60 and 80 percent of her maximum heart rate is 141.2 bpm to 170.6 bpm.
Using the Karvonen Method:
The maximum heart rate (HRmax) :
HRmax = 220 - age.
For an 18-year-old, the maximum heart rate (HRmax) will be:
HRmax = 220 - 18
HRmax = 202 bpm
Therefore, the maximum heart rate (HRmax) for an 18-year-old is 202 bpm.
Heart rate reserve (HRR) :
HRR = HRmax - RHR (Resting Heart Rate).
RHR is the resting heart rate of the individual. For an 18-year-old with a resting heart rate of 60 :
HRR = HRmax - RHR
HRR = 202 - 60HRR = 142 bpm
Therefore, the heart rate reserve (HRR) for an 18-year-old is 142 bpm.
The target heart rate - 60% (THR 60%) :
THR 60% = (HRR x 0.6) + RHR
THR 60% = (HRR x 0.6) + RHR
THR 60% = (142 x 0.6) + 60
THR 60% = 141.2 bpm
Therefore, the target heart rate - 60% (THR 60%) for an 18-year-old is 141.2 bpm.
The target heart rate - 80% (THR 80%) :
THR 80% = (HRR x 0.8) + RHR
THR 80% = (HRR x 0.8) + RHR
THR 80% = (142 x 0.8) + 60
THR 80% = 170.6 bpm
Therefore, the target heart rate - 80% (THR 80%) for an 18-year-old is 170.6 bpm.
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witch molecule does water become?
witch molecule does carbon dioxide become?
Answers
Answer:
H2 +1/2O2 ----> H2O
C +O2------> CO2
Explanation:
Helpppppppppppppppppppppp ! Its Not Hard
Answers
Answer:
cytoplasm, dna ,cell membrane
Explanation:
I need 5 abiotic factors and examples that go along with it
Answers
An abiotic factor is a non-living part of an ecosystem, including its physical and chemical aspects.
Examples of abiotic factors include:
Sunlight: It is the source of energy for plants and affects animal habits.
Temperature: It affects the life of every species, determining where they can exist, afects metabolic reactions and is determinant for the variation of plants and animals.
Atmosphere: It sustains life on earth protecting animals from UV radiation for example.
Humidity: it affects the internal balance of organisms.
Soil: It is a source of nutrients for plants, therefore its composition affects their functions
The depth of a body of water can also be considered an abiotic factor. It affetcs for example the type of species that can live there and it determines the preassure they would have to withstand.
Bully whippets are homozygous for a deletion of two base pairs in the myostatin gene. This deletion changes an mRNA codon in the middle of the myostatin mRNA from UGU to UGA. Use your knowledge of the genetic code to determine the effect of this mutation on the structure of the resulting protein.
Answers
Explanation:
The deletion of two base pairs in the myostatin gene in bully whippets results in a frameshift mutation. This means that the reading frame of the mRNA is shifted, causing all subsequent codons to be read incorrectly. The mutation changes an mRNA codon in the middle of the myostatin mRNA from UGU to UGA, which is a stop codon.
UGU normally codes for the amino acid cysteine, but UGA does not code for any amino acid. Instead, it signals the end of the protein chain. Therefore, the mutation results in premature termination of the myostatin protein synthesis.
The resulting protein will be truncated and incomplete, lacking the C-terminal portion of the myostatin protein. This deletion is likely to affect the function of the myostatin protein, which is a negative regulator of muscle growth. As a result, bully whippets have increased muscle mass and strength compared to other whippet breeds.
Answer:
The genetic code is a set of rules that dictates the correspondence between the nucleotide sequence in DNA or mRNA and the amino acid sequence in proteins. Each codon in the mRNA specifies a specific amino acid, and the reading of the codons occurs in sets of three.
In this case, the deletion of two base pairs in the myostatin gene changes an mRNA codon from UGU to UGA. The codon UGU encodes for the amino acid cysteine, while UGA is a stop codon that signals the end of translation. Therefore, the mutation results in a premature termination of translation, leading to the production of a truncated protein that lacks a portion of the myostatin protein's normal sequence.
Since myostatin is a negative regulator of muscle growth, the mutation in the bully whippets leads to a loss of function of the myostatin protein, resulting in increased muscle mass and the "bully" phenotype observed in these dogs.
Help me
If a nonrenewable resource such as oil suddenly became scarce while the demand remained constant
A-the price would increase.
B the price would decrease
C supply would increase
D supply would decrease
Answers
Answer:
А
Explanation:
Demand will not increase because the price will increase and the quantity will instantly become zero, so the price will become very high.
Answer:
A
Explanation:
If a nonrenewable resource such as oil suddenly became scarce while the demand remained constant, the most likely outcome would be an increase in price. Therefore, the answer is A - the price would increase.
When a nonrenewable resource becomes scarce, it becomes more expensive to extract and produce, and this increased cost would be passed on to the consumers in the form of higher prices. Additionally, since the demand for oil remains constant, the market forces of supply and demand would push the price up as consumers compete for the limited supply of oil.
How does virus and bacterial infections each affect healthy body cells?
Answers
The virus infections happens when a virus gets past the physical barriers of the body (skin, mucus, and so on) and infect a suitable cell, the virus take the genetic machinery of the host cell to replicate, damaging that cell and making more virus that will do the same process with other suitable cells. After the virus use all the cell potential, it will kill the cell and release all the virus that were in the cytoplasm of the host. While bacterial infections have more autonomy, being not necessary the integral machinery of the cell to multiply in the host body, it can act in differrebt ways, such as: crowd out the host tissue and disrupt the function, killing the cells or tissues outright, destroy the metabolic machinery, cause a massive toxic reaction in the immune system, and release toxins that can make the body stop all their functions at once (paralyze the metabolic and general system of the host).
the urinary bladder, found in the ________ region of the abdominopelvic cavity, is evenly divided between the two ________ abdominopelvic quadrants.
Answers
Answer:
What is hypogastric; lower
Explanation:
the urinary bladder, found in the HYPOGASTRIC region of the abdominopelvic cavity, is evenly divided between the two LOWER abdominopelvic quadrants.
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Please help
Sediments turn into solid rock through two different but related
processes. These processes are called compaction and chemical
weathering.*
O True
O False
Answers
Why did all of the F1 offspring of Mendel's classic pea cross always look like one of the two parental varieties? a. Each allele affected phenotypic expression.
b. The traits blended together during fertilization.
c. No genes interacted to produce the parental phenotype.
d. One allele was dominant.
Answers
The correct statement is option d: All of the F1 offspring of Mendel's classic pea cross always looked like one of the two parental varieties because one allele was dominant.
Option d is correct because Mendel's experiments revealed that one allele, which he referred to as the dominant allele, masked the expression of the other allele, known as the recessive allele. In the F1 generation, when Mendel crossed two purebred pea plants with contrasting traits (e.g., tall and short), all of the offspring exhibited the trait of the dominant allele.
This occurred because the dominant allele determined the phenotype, while the recessive allele remained unexpressed. The dominant allele was able to overpower or suppress the expression of the recessive allele, resulting in the offspring resembling only one of the parental varieties. This phenomenon is known as dominance and was a key discovery in Mendel's studies of inheritance. Options a, b, and c do not accurately explain the observed patterns in Mendel's pea crosses.
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why are angiosperms so diverse (when compared with non-flowering lineages of plants)? to answer this, think about how expensive flowers are to produce for the plant
Answers
The evolution of flowers and other reproductive adaptations in angiosperms has allowed them to diversify and adapt to a wide range of environments, leading to their current status as the dominant group of land plants
Angiosperms (flowering plants) are the most diverse group of land plants, with over 300,000 known species. One reason for their remarkable diversity is the evolution of flowers, which are highly efficient structures for attracting pollinators and producing seeds.
While producing flowers can be energetically costly for a plant, the benefits of successful pollination and seed production outweigh the costs. Flowers allow angiosperms to reproduce more efficiently and rapidly than non-flowering plants. This is because flowers offer several advantages over non-flowering plants in terms of attracting pollinators, reducing self-fertilization, and promoting genetic diversity.
Flowers are often brightly colored and produce scent, nectar, and other rewards that attract pollinators such as bees, butterflies, and birds. This enhances the probability of successful pollination and increases the chances of producing viable seeds. Moreover, flowers have specialized structures that prevent self-fertilization, which can reduce genetic diversity and limit the adaptability of a species to new environments.
Additionally, angiosperms have evolved various mechanisms for seed dispersal, which allow them to colonize new habitats and expand their geographic range. These mechanisms include wind, water, and animal-mediated dispersal, such as fruits that are adapted to be eaten and dispersed by animals.
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The evolution of flowers and other reproductive adaptations in angiosperms has allowed them to diversify and adapt to a wide range of environments, leading to their current status as the dominant group of land plants
Angiosperms (flowering plants) are the most diverse group of land plants, with over 300,000 known species. One reason for their remarkable diversity is the evolution of flowers, which are highly efficient structures for attracting pollinators and producing seeds.
While producing flowers can be energetically costly for a plant, the benefits of successful pollination and seed production outweigh the costs. Flowers allow angiosperms to reproduce more efficiently and rapidly than non-flowering plants. This is because flowers offer several advantages over non-flowering plants in terms of attracting pollinators, reducing self-fertilization, and promoting genetic diversity.
Flowers are often brightly colored and produce scent, nectar, and other rewards that attract pollinators such as bees, butterflies, and birds. This enhances the probability of successful pollination and increases the chances of producing viable seeds. Moreover, flowers have specialized structures that prevent self-fertilization, which can reduce genetic diversity and limit the adaptability of a species to new environments.
Additionally, angiosperms have evolved various mechanisms for seed dispersal, which allow them to colonize new habitats and expand their geographic range. These mechanisms include wind, water, and animal-mediated dispersal, such as fruits that are adapted to be eaten and dispersed by animals.
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200 (rev 2020)
Complete the sentence.
Atoms form chemical bonds to satisfy the
rule and to become
Answers
Answer:
Atoms form chemical bonds to satisfy the ⇒ octet rule and to become ⇒ stable.
Explanation:
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During which phase of mitosis do the sister chromatids move apart?.
Answers
Answer:
anaphase
Explanation:
In three sentences, explain why birds have different lengths and shapes of beaks.
Answers
Answer:
Different bird species have differently shaped beaks because each species has evolved a beak design that suits its diet and lifestyle. Beaks function somewhat as human tools do, and they help the birds to access food.This enables the birds to sip nectar from inside flowers.
Explanation:
An elephant is a multicellular organism that weighs about 200 pounds at birth and can grow to weigh as much as 15,000 pounds. What increases as the elephant grows into an adult?
Answers
When the elephant grows into an adult, the number of cells keeps on increasing which enhances the overall body mass of the elephant.
What do you mean by Multicellular organism?The multicellular organism may be defined as an organism that is composed of more than one cell, with groups of cells discriminating to take on specialized functions.
The size of every organism depends on the number of cells it contains, and how the process of cell division is being carried out in that organism.
Therefore, when the elephant grows into an adult, the number of cells keeps on increasing which enhances the overall body mass of the elephant.
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3) How far did the ice sheets flow southward during the last
ice age?
15 points nd brainly
Answers
Covered an area of more than 13,000,000 square km 5,000,000 square miles.
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Why do clouds, and sometimes precipitation, typically form along a frontal boundary such as a warm front?
Answers
begins with spermatogonia undergoing mitosis, one daughter cell from each mitotic division pushes toward lumen, daughter cells differentiate into spermatocytes, part of somatic cell division (one cell = two daughter cells)
Answers
The process you are describing is called spermatogenesis, which is the process by which male gametes, or sperm cells, are produced. It begins with the division of spermatogonia, which are stem cells in the testes that undergo mitosis to produce two daughter cells. One of the daughter cells remains a spermatogonium and continues to divide, while the other daughter cell differentiates into a primary spermatocyte.
The primary spermatocyte then undergoes meiosis, a specialized type of cell division, to produce two secondary spermatocytes, each with half the number of chromosomes as the original cell. The secondary spermatocytes then undergo another round of meiosis to produce four haploid spermatids, each with a single set of chromosomes.
The spermatids then undergo a process called spermiogenesis, which involves the transformation of the spermatids into mature sperm cells, or spermatozoa. This process includes the formation of the acrosome, which contains enzymes needed for fertilization, and the development of a tail, which allows the sperm to move.
Overall, spermatogenesis is a complex process that involves several stages of cell division and differentiation to produce mature sperm cells. It is essential for the continuation of sexual reproduction in many animals, including humans.
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during inspiration (more than one answer may apply) a. the alveolar pressure is less than the atmospheric pressure b. the intrapleural pressure becomes more negative c. the return of blood to the thoracic cavity increases d. the pco2 in the alveoli decreases
Answers
The air moves to the lungs during inspiration. The alveolar pressure must be lower than the atmospheric pressure for air to move to the lungs.
The lungs can take in air thanks to this difference in pressure. Inhaling, sometimes referred to as inspiration, is the initial phase. Inhalation causes the diaphragm to tighten and pull downward. The muscles in the space between the ribs tighten and pull upward. The thoracic cavity enlarges as a result, releasing internal pressure.
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The question was incomplete. Check below the complete question.
during inspiration (more than one answer may apply)
a. the alveolar pressure is less than the atmospheric pressure
b. the intrapleural pressure becomes more negative
c. the return of blood to the thoracic cavity increases
d. the pco2 in the alveoli decreases
the movements known as dorsiflexion and plantar flexion involve moving the
Answers
The movements known as dorsiflexion and plantar flexion involve moving the foot.
Dorsiflexion and plantar flexion are specific movements that occur at the ankle joint, involving the foot. Dorsiflexion refers to the movement of the foot in which the toes are lifted towards the shin, while plantar flexion involves pointing the foot downward, as in standing on tiptoes.
These movements are controlled by muscles located in the lower leg, such as the tibialis anterior and the gastrocnemius-soleus complex. The tibialis anterior muscle is responsible for dorsiflexion, contracting to lift the foot and toes, while the gastrocnemius and soleus muscles are responsible for plantar flexion, contracting to point the foot downward.
The movements of dorsiflexion and plantar flexion are essential for various activities, including walking, running, jumping, and maintaining balance. They allow for proper positioning of the foot during gait and contribute to the overall movement and stability of the lower extremity.
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The complete question is:
The movements known as dorsiflexion and plantar flexion involve moving the _____.
hand.arm.foot.leg.hip.Select the correct answer. mathew claims that people should invest in alternative sources of energy rather than burning fossil fuels. he has put together two graphs as evidence. the first compares how human use of fossil fuels affects atmospheric carbon dioxide levels, and the second shows how land-ocean temperatures on earth have changed over time. which statement correctly supports his claim based on evidence from the graphs? a graph showing the increasing trend of carbon emissions from 1800 to 2004, a graph showing the increasing trend of annual mean temperature from 1880 to 2015 a. more carbon in the atmosphere likely absorbs more heat energy, thus increasing the temperature. b. petroleum should replace natural gas, since it releases less carbon dioxide. c. burning coal does not contribute to a rise in carbon dioxide or temperature. d. carbon dioxide emissions from burning fossil fuels has decreased over time. e. the graphs show no possible correlation between burning fossil fuels and increasing temperatures.
Answers
The evidence from the graphs is that more carbon in the atmosphere is likely to absorb more heat energy, thus raising the temperature.
Why does carbon raise the temperature?The feature is important because the effect of sunlight on the Earth's surface, including the oceans, is reflected in the form of infrared rays. By absorbing this radiation, the gases heat up the entire atmosphere as if they were a blanket that keeps the planet warm.
Whit this information, we can conclude that the evidence from the graphs is that more carbon in the atmosphere is likely to absorb more heat energy, thus raising the temperature.
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Answer:
See below !! :)
Explanation:
The number 0.0054 written in scientific notation is
A) 0.54 x 10-3.
B) 0.54 x 103.
C) 5.4 x 10-3.
D) 5.4 x 103.
Answers
Answer:
It's C) 5.4 x 10-3
Explanation:
1. Take 0.0054 and move the decimal 3 times to the right
- moving the decimal to the right means you multiply
2. Use your new number, 5.4 and make a new equation
3. Your new equation is, 5.4 times 10 to the 3 power
\(5.4 (10-3)\)\(hope this helps\) ·ω·
The number 0.0054 written in scientific notation is \(5.4 X 10^{-3\). The correct option is C.
In scientific notation, a number is expressed as a coefficient multiplied by 10 raised to a certain power.
The coefficient should be a number greater than or equal to 1 and less than 10. The power of 10 indicates the number of decimal places the original number should be moved to the left or right to obtain the given value.
For 0.0054, we can write it as 5.4 multiplied by 10 raised to the power of -3. This is because we move the decimal point three places to the right to obtain the value 5.4, and the power of 10 becomes -3 to indicate the decimal movement.
So, the number 0.0054 in scientific notation is \(5.4 X 10^{-3\).
Thus, the correct option is C.
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Why are cells stained?
1 point
To make the cell turgid
To nourish the cell.
To help in cell multiplication.
To highlight the cell organelles.
Answers
Answer:
To highlight the cell organelles
The basic reason that cells are stained is to enhance visualization of the cell or certain cellular components under a microscope.
Please help me please help me
Answers
Answer:
1.write a post responding to the prompt.Be sure to address all sections of the prompt,and provide references where necessary.
the model shows the hierarchical organization of the human nervous system. select the level of organization that is a group of tissues working together.
Answers
The level of organization in the human nervous system that represents a group of tissues working together is the organ level.
At this level, structures such as the brain and spinal cord, made up of multiple types of tissue such as neurons and supportive glial cells, work together to perform specific functions. For example, the brain is made up of multiple regions that work together to perform functions such as sensation, movement, and cognition. Similarly, the spinal cord, made up of gray and white matter, receives and transmits neural signals between the brain and the periphery. This level of organization is the foundation of the nervous system, where the different tissues work together to make sure the system runs smoothly.
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If you are provided with some vegetables to cook. You generally add salt
into the vegetables during cooking process. After adding salt, vegetables
release water. What mechanism is responsible for this?
Answers
What structure in the nephron allows for the concentration of highly concentrated interstitial fluid? a. Glomerulus
b. Collecting Ducts Ureter c. Loop of Henle d. Afferent Arteriole
Answers
The structure in the nephron that allows for the concentration of highly concentrated interstitial fluid is the loop of Henle. Therefore, the correct answer is C i.e., Loop of Henle.
The loop of Henle is a U-shaped structure located in the renal medulla that is composed of a descending limb and an ascending limb. The descending limb is permeable to water but not to solutes, while the ascending limb is permeable to solutes but not to water.
The loop of Henle works by utilizing the counter-current multiplier system. This system uses the flow of fluid in the descending & ascending limbs of the loop of Henle in opposite directions to create a concentration gradient.
As fluid flows down the descending limb of the loop of Henle, water moves out of the tubule and into the interstitial fluid due to the high concentration of solutes in the interstitial fluid. This causes the fluid in the descending limb to become more concentrated.
In conclusion, the loop of Henle is the structure in the nephron that allows for the concentration of highly concentrated interstitial fluid.
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