E. The activation energy for the catalyzed reaction is the same as for the uncatalyzed reaction, but the equilibrium constant is more favorable in the enzyme-catalyzed reaction.
Catalysts participate in the reaction mechanism, combining with reactants to form intermediates, while free catalysts can be regenerated and then subjected to another catalysis.
Equilibrium position is not affected, but equilibrium is approached faster
This is a thermodynamic principle. Catalysts do not affect the thermodynamics of the reaction, which determines the equilibrium constant (“K”) of the reaction. Catalysts affect reaction rates by increasing the rate (k) of both forward and reverse reactions.
To know more Catalysts
https://brainly.com/question/28813725
#SPJ4
antidiuretic hormone (adh) is important in maintaining homeostasis in mammals. adh is released from the hypothalamus in response to high tissue osmolarity. in response to adh, the collecting duct and distal tubule in the kidney become more permeable to water, which increases water reabsorption into the capillaries. the amount of hormone released is controlled by a negative feedback loop. Based on the model presented, what is the relationship between ADH release, osmolarity and production of urine? o As tissue osmolarity rises, more ADH is released, causing less water to be excreted as urine o As tissue osmolarity rises, less ADH is released, causing less water to be excreted as urine o As tissue osmolarity rises more ADH is released, causing more water t0 be excreted as urine o As tissue osmolarity rises, less ADH is released, causing more water to be excreted as urine
0 Two of the above
The relationship between ADH release, osmolarity and production of urine is as tissue osmolarity RISES, MORE ADH is released, causing LESS water to be excreted as urine.
In mammals, antidiuretic hormone (ADH) is essential for maintaining homeostasis. In response to high tissue osmolarity, the hypothalamus releases ADH. The collecting duct and distal tubule in the kidney become more permeable to water in response to ADH, increasing water reabsorption into the capillaries.
Antidiuretic hormone is a brain chemical that causes the kidneys to release less water, reducing the amount of urine produced. When the ADH level is high, the body produces less urine. A low level causes more urine production. Desmopressin is a synthetic form of vasopressin, an antidiuretic hormone. Diabetes insipidus, primary nocturnal enuresis, spontaneous bleeding or haemorrhage, haemophilia A, von Willebrand's disease, and nocturia are all treated with it.
To know more about the Antidiuretic hormone,here
https://brainly.com/question/28166321
#SPJ4
fiddlehead greens are the curled, young fronds of a fern. harvested very early and trimmed close to the ground, they provide a tasty addition to salads. these multicellular, photosynthetic, vascularized organisms that do not produce seeds belong to the kingdom
plantae
The Fiddlehead greens having photosynthetic, vascularized cells belong to the kingdom (1) Plantae.
Photosynthetic refers to the organisms that can perform the process of photosynthesis. This requires the presence of a specialized organ called chloroplast that contains the green colored pigment called chlorophyll. Plants and some fungi are able to photosynthesize.
Plantae is the kingdom that contains of organisms called plants. These are usually green colored due to the presence of chloroplast and chlorophyll. The differentiating character also is that they have the cell wall on their outer side. The kingdom is further divided into subgroups namely: Thallophyta, Bryophyta, Pteridophyta, Angiosperms, and Gymnosperms.
The given question is incomplete, the complete question is:
Fiddlehead greens are the curled, young fronds of a fern. Harvested very early and trimmed close to the ground, they provide a tasty addition to salads. These multicellular, photosynthetic, vascularized organisms that do not produce seeds belong to the kingdom:
PlantaeAnimaliaFungiMoneraTo know more about plantae, here
brainly.com/question/26808773
#SPJ4
Nitrogen is part of many important substances in living organisms. Distinguish between transcription and translation.
A. DNA transcription AND mRNA translation, B. transcription creates RNA AND translation creates polypeptides or proteins, C. RNA polymerase is only used in transcription and ribosomes are only used in translation.
What kind of example of organisms?A living species that possesses all the characteristics of life is often referred to as an organism. These can take the form of a microorganism, insect, bird, plant, or even a mammal. Numerous diverse species of life number in the billions or trillions on our planet Earth.
Which creatures are present in people?Millions of little living things, collectively known as the human microbiota, live inside each and every cell of the body. In the mouth, nose, and skin, bacteria are microscopic organisms.
To know more about Organisms visit:
https://brainly.com/question/484200
#SPJ4
Wheat is attacked by many different pests, including a fungus called yellow rust.
a Describe how you could use artificial selection to produce a new variety of wheat which is naturally resistant to yellow rust.
When resistant varieties of wheat are produced, it is found that after a few years they are infected by yellow rust again. Explain how this might happen
Answer:Puccinia striiformis f.
Stripe (yellow) rust, caused by Puccinia striiformis f. sp. tritici (Pst), is a serious disease of wheat occurring in most wheat areas with cool and moist weather conditions during the growing season. The basidiomycete fungus is an obligate biotrophic parasite that is difficult to culture on artificial media.
Explanation:Does rust turn black?
Image result
Rust from Iron (III) oxides with limited oxygen and low moisture results in black rust. Black rust can be visually identified as a thin, black film which is the result of oxidation in a low oxygen environment.
There are several fungicides that can be used to protect plants from infection. Mancozeb as a protectant and myclobutanil as an eradicant are generally effective against all rusts while triadimefon is effective against only specific rusts.
Assuming that protein synthesis was under way when the radioactive amino acids were added, which of the following best describes how the radioactivity was distributed in one of the first molecules of Protein X that was completely translated?A.Radioactive amino acids were randomly located throughout the molecule.B.Radioactive amino acids were located only at one end of the molecule.C.Radioactive amino acids were located at both ends, but not in the middle, of the molecule.D.Radioactive amino acids were located in the middle, but not at either end, of the molecule.Answer: B Since protein synthesis was already underway, the N terminal and probs the middle are already completed, so all the radioactive AAs will be at the one end.
The radioactivity distributed in one of the first molecules of Protein X that was completely translated Option B that is : Radioactive amino acids were located only at one end of the molecule
What are radio active amino acids ?Aspartic acid, alanine, and lower quantities of 3- and 4-carbon amino acids were the radioactive amino acids that were found. This result, along with the complete lack of radioactive glutamic acid, supports the CO-sub 2 reduction mechanism that laboratory members had previously proposed.
Polyatomic molecules make up amino acids. The amino acid will be radioactive if one or more of these atoms are.
Prior to the insertion of radioactive amino acids, the majority of the N-terminal end and likely the middle portion of the protein were already produced because translation had already begun.
To know more about radioactive amino acids you may visit :
https://brainly.com/question/2929642
#SPJ4
In concentrated (hypertonic) solutions, water _____ the cells
In concentrated (hypertonic) solutions, water moves out of the cells. There is a net flow of water out of the cell and cell loses its volume.
What is a hypertonic solution?
A hypotonic solution is a solution which has lower osmotic pressure than the solution outside to which it is compared. It may also mean a solution which contains a lower amount of solute concentration as compared with the solute concentration in the other solution which is present across a semipermeable membrane.
In a hypertonic solution, there is a net movement of water out of the cell body and into the solution in which the cell is placed. A cell placed into a hypertonic solution will shrink and die by a process known as plasmolysis which results into reduction of cell volume.
Learn more about Hypertonic solutions here:
https://brainly.com/question/29309024
#SPJ1
During the 1950s, a scientist named Lysenko tried to solve the food shortages in the Soviet Union by breeding wheat that could grow in Siberia. He theorized that if individual wheat plants were exposed to cold, they would develop additional cold tolerance and pass it to their offspring. Based on the ideas of artificial and natural selection, do you think this project worked as planned?
No, because there was no process of selection based on inherited traits. Lysenko assumed that exposure could induce a plant to develop additional cold tolerance and that this tolerance would be passed to the plant's offspring.
Based on the ideas of artificial and natural selection, this project didn't work as planned C. because there was no process of selection based on inherited traits.
Trofim Lysenko was a biologist in the Soviet Union at the time who was opposed to the fundamental principles of science. Humans developed selective breeding as a means of achieving desired outcomes by altering specific species' characteristics. This is based on the idea that genes in living things contain traits that can be passed down from one generation to the next.
Lysenko refuted this assertion. He was more of a firm believer that animals and plants can quickly adapt to their surroundings and develop traits that they can then pass on to their offspring. When he exposed wheat plants to cold, he used this theory to predict that they would become cold-tolerant. Millions of people in the Soviet Union perished as a result of severe starvation and this woefully failed.
Know more about selective breeding here: https://brainly.com/question/461245
#SPJ4
(Complete question)
During the 1950s, a scientist named Lysenko tried to solve the food shortages in the Soviet Union by breeding wheat that could grow in Siberia. He theorized that if individual wheat plants were exposed to cold, they would develop additional cold tolerance and pass it to their offspring. Based on the ideas of artificial and natural selection, do you think this project worked as planned?A. Yes; the wheat probably evolved better cold tolerance over time through inheritance of acquired characteristics.
B. No, because Lysenko took his wheat seeds straight to Siberia instead of exposing them incrementally to cold.
C. No, because there was no process of selection based on inherited traits. Lysenko assumed that exposure could induce a plant to develop additional cold tolerance and that this tolerance would be passed to the plant's offspring.
D. Yes, because this is generally the method used by plant breeders to develop new crops.
take a position on the existence of a priori knowledge referencing relevant rationalist and empiricist philosophers.
A sort of epistemic justification known as a priori justification is in some ways independent of experience.
What does philosophy mean by a priori knowledge?Since Immanuel Kant, a posteriori knowledge—which is obtained through experience—has been contrasted with a priori knowledge, which is information that is learned independently of any particular experience.
Do rationalists think that knowledge is known beforehand?In the area of epistemology, or the theory of knowledge, where its claims are most clear, rationalism maintains that at least some human knowledge is acquired through a priori (prior to experience), or rational, insight as opposed to sense experience, which all too frequently offers a confused and merely tentative approach.
To know more about priori visit:-
https://brainly.com/question/8184483
#SPJ4
panish moss is not a moss, but a flowering plant (Tillandsia usneoides) often seen draped from the branches of live oaks, cypress, and other large trees in the southeastern United States. The trees on which it grows provide support but no nutrients or moisture—the plant provides those things for itself, without apparently harming its support tree. What type of interspecific interaction is this an example of?
Spanish moss is a flowering plant that shows commensalism.
Spanish moss is a blooming plant (Tillandsia usneoides), not a moss, that is commonly observed in the southeast of the United States draped from the branches of live oaks, cypress trees, and other large trees. The trees on which it grows give it support but no nutrients or moisture; the plant compensates for these needs without appearing to harm the supporting tree. So, this is an illustration of commensalism. Another sort of symbiotic interaction is commensalism, in which one organism benefits and the other does not in any way suffer.
Hence, symbiotic interaction of Spanish moss is commensalism.
To know more about Types of interaction.
https://brainly.com/question/29783233
#SPJ4
The advantages of studying the processes and patterns of evolution using molecular data include all of the following except that
A. Molecular data directly reflect genetic differences.
B. Molecular data can be quantified
C. Molecular data can be applied to large amounts of genetic variation.
D. Molecular data can be used to compare different species. E. Molecular data are directly reflected in phenotype.
The disadvantages of studying the processes and patterns of evolution using molecular data are directly reflected in phenotype.
Thus, the correct answer is E.
What are the advantages of molecular data?Both moleculаr аnd morphologicаl dаtа hаve importаnt roles in elucidаting evolutionаry history аnd phylogeny. Аdvаntаges of moleculаr dаtа includes the lаrge number of chаrаcters thаt аre аvаilаble:
As well аs sophisticаted models of sequence evolution thаt mаy be used in phylogenetic аnаlyses However, in most instаnces it hаs not been possible to obtаin DNА sequences for fossil tаxа. In contrаst, certаin types of morphologicаl dаtа mаy be collected for both fossil аnd extаnt tаxа. Fossils provide а unique window on evolutionаry history аnd often preserve combinаtions of primitive аnd derived chаrаcters thаt аre not found in extаnt tаxаGiven their unique chаrаcter complexes, fossils аre criticаl in documenting sequences of chаrаcter trаnsformаtion over geologic timeMorphologicаl evidence from fossils mаy reveаl pаtterns of evolution thаt аre not аppаrent from moleculаr phylogenies аlone.For more information about molecular data refer to the link:
https://brainly.com/question/16044878
#SPJ4
Jessie's initial blood test results show that her common electrolytes, blood pH, lactate, pyruvate, total ammonia, oxygen, and carbon dioxide levels are all within the normal ranges. You also test for common lipids, including fatty acids (FAs), triacylglycerides (TAGs), total cholesterol, and ketone bodies, using acetoacetate as a marker. Prolonged fasting changes the concentrations of certain substances in the blood. Test Jessie's level Normal range FAs 500 mg/dL 190–420 mg/dL TAGs 175 mg/dL 40–150 mg/dL total cholesterol 140 mg/dL 120–200 mg/dL ketone bodies undetectable 5–30 μg/mL Select all the substances in the blood that you would expect to increase in concentration after a healthy individual has fasted for 12 hours. - glucagon - insulin - glucose - fatty acids - ketone bodies
She has elevated levels of triacylglycerides and fatty acids because she is obese.
After prolonged fasting, there are profound changes in many circulatory parameters that can affect postprandial nutrient metabolism. Significantly increases and lowers blood sugar levels.
Skipping meals can lower blood sugar levels and medication can lower blood sugar levels further leading to hypoglycemia. Low blood sugar can make you shiver pass out or throw you into a coma. Eating to break the fast can also lead to hyperglycemia. A significant metabolic change is an increase in lipolysis. Fasting results in a lack of carbohydrates that the body can use to form ATP.
Learn more about Blood tests here:- https://brainly.com/question/91450
#SPJ4
SOLVED With multicellular organisms.. which type (s) of cells divide that do not pass genetic information??
Somatic cells in multicellular organisms divide but do not pass the genetic information.
What are somatic cells?Somatic cells, also known as vegetal cells, are biological cells that constitute the body of multicellular organisms and are distinguished from gametes, germ cells, gametocytes, and undifferentiated stem cells by their lack of differentiation. These cells make up the structure of an organism and reproduce through processes known as binary fission and mitotic division respectively.
Mutations in DNA that occur in somatic cells can have an effect on an individual, but they cannot be passed on to the progeny of that individual.
Learn more about somatic cells, here:
https://brainly.com/question/11348645
#SPJ1
4. A car of mass 800 kg accelerates from 5m / s to 25m / s in 10 s. a) Calculate the acceleration. b) Calculate the resultant force exerted.
Answer: To calculate the acceleration of the car, we can use the equation:
acceleration = (final velocity - initial velocity) / time
Plugging in the values given in the question, we get:
acceleration = (25 m/s - 5 m/s) / 10 s = 2 m/s^2
To calculate the resultant force exerted on the car, we can use the equation:
resultant force = mass * acceleration
Plugging in the values given in the question, we get:
resultant force = 800 kg * 2 m/s^2 = 1600 N
This is the force that must be exerted on the car to accelerate it from 5 m/s to 25 m/s in 10 s.
A) As, the accelerarion equation is V - U/t
so its 25-5/10 so its 2m/s^2
B) With the above answer in A) we can calculate the force with the equation f = m * a
so , 800*2 = 1600N
Question 1-13
Which type of biome occupies the largest area of Earth?
O marine
O tropical rain forest
O grassland
O temperate deciduous forest
Answer:
Option1) MarineThe marine biome is primarily made up of the saltwater oceans. It is the largest biome on planet Earth and covers around 70% of the Earth's surface and over 90% of life on Earth lives in the ocean. The average temperature of the ocean is 39 degrees F.Which term means "a feature of
an organism's body that helps it
survive and reproduce"?
Behavioral
Anatomical this is the answer
Answer:
• Anatomical adaptation: a feature of an organism's body that helps it survive and reproduce.
Explanation:
Answer: Anatomical
Explanation:
In living organisms, the ratio of the naturally occurring isotopes of carbon, C-12 to C-13 to C-14 is fairly consistent. When an organism such as a woolly mammoth died, it stopped taking in carbon, and the amount of C-14 present in the mammoth began to decrease. For example, one fossil of a woolly mammoth is found to have 1/32 of the amount of C-14 found in living organisms. Identify the type of nuclear reaction that caused the amount of C-14 in the woolly mammoth to decrease after the organism died.
One fossil of a woolly mammoth is found to have 1/32 of the amount of C-14 found in living organisms therefore the type of nuclear reaction that caused the amount of C-14 in the woolly mammoth to decrease after the organism died is referred to as beta decay reaction.
What is beta decay?This is referred to as a type of radioactive decay in which a beta ray is emitted from an atomic nucleus and the equation can be seen below:
¹⁴₆C→ ¹⁴₇N + ⁰₋₁e
This is also characterized by he proton in the nucleus being transformed into a neutron and vice versa. For example if a proton is converted to a neutron, it is known as β+ decay while if a neutron is converted to a proton, it is known as β– decay which is therefore the reason why it was chosen as the correct choice.
Read more about Beta decay here https://brainly.com/question/12448836
#SPJ1
the vertebral column is composed of 33 bones before ____ ; some later fuse to form ____ separate bones.
The vertebral column is composed of 33 bones before fusing; some later fuse to form 26 separate bones.
The vertebral column, also known as the backbone or spine, is a long, flexible column of bones extending from the skull to the tailbone. It is made up of 33 vertebrae, separated into five sections: the cervical, thoracic, lumbar, sacral, and coccygeal. In between each vertebra is a disc of cartilage that acts as a shock absorber, allowing the bones to move independently of one another.
The vertebral column also houses the spinal cord, which is a bundle of nerves that runs from the brain to the lower back. It is responsible for transmitting signals to and from the brain and body.
For more questions like Vertebral column click the link below:
https://brainly.com/question/8558859
#SPJ4
When an individual exercises vigorously for more than 15 minutes, the muscle cells are unable to obtain oxygen from the blood quickly enough. As a result, the muscle cells
A.
Answer:
activate anaerobic respiration, producing lactic acid build-up.
Question 3 of 10
RNA is a type of nucleic acid that is responsible for
transporting and using the information stored in DNA.
What aspect of RNA's structure makes it ideal for carrying out this role in an
organism?
OA. Its single-stranded structure, which allows it to easily copy the
pattern of bases in one strand of DNA
OB. Its hydrocarbon chains, which help the molecule repel harmful
substances
C. Its highly branched structure, which helps the molecule store a lot
of energy in a compact space
OD. Its long, narrow shape, which helps it pack tightly with other RNA
molecules
Similar to DNA, each strand of RNA has the same fundamental structure, which is made up of nitrogenous bases bonded covalently to a sugar-phosphate backbone. RNA is typically a single-stranded molecule, in contrast to DNA.
Do mRNA and tRNA have one strand?
A tRNA is created from a single strand of RNA, like the one modelled below (just like an mRNA is). Base pairs do, however, occur between nucleotides in various regions of the molecule, giving the strand a complex 3D shape.
Transcription
Making an RNA copy of a gene's DNA sequence is a process known as transcription in the context of genomics. The messenger RNA (mRNA) copy carries the DNA-encoded protein information for the gene.
To know more about RNA, visit:
https://brainly.com/question/25979866
#SPJ1
Blue poppies native to China were grown at a plant-breeding center in California. The plants with the thickest leaves were most likely to survive and reproduce in the drier climate. After several generations, the percentage of thick-leaved plants had increased by 42%. This adaptation of the poppies to their new environment is due to _____.
- directional selection
The characteristics of the poppies shifted in response to the changed environment.
This adaptation of the poppies to their new environment is due to directional selection. The characteristics of the poppies shifted in response to the changed environment.
What is directional selection?
In population genetics, directed selection is a mode of negative natural selection in which one extreme phenotype is favored over the other, causing allele frequencies to shift towards that phenotype over time. . Under directional selection, favorable alleles increase as a result of survival and reproductive differences between different phenotypes. The increase is independent of allele dominance and is eventually fixed even if the allele is recessive. First described as a form of natural selection. Other types of natural selection include stabilizing selection and perturbing selection. Each type of selection involves the same principles, but is slightly different. Destructive selection favors both extreme phenotypes distinct from extreme directional selection. Stabilizing selection favors an intermediate phenotype and reduces population variation over time.
Therefore, This adaptation of the poppies to their new environment is due to directional selection.
To know more about directional selection, visit:
https://brainly.com/question/1075333
#SPJ1
HELP IM ON LIMITED TIME
Scientists use bacteria to study natural selection because they
reproduce very quickly. After doing thousands of experiments and
collecting a lot of data, a scientist says "The type of bacteria that
survives and reproduce will pass on their traits to their offspring."
This statement is an example of a(n)
Select one:
Theory
Law
Observation
Hypothesis
Answer:
This statement is an example of a hypothesis.
Explanation:
This statement is an example of a hypothesis. A hypothesis is a proposed explanation for a phenomenon. It is based on observations and can be tested through further experimentation. In this case, the scientist is proposing a hypothesis about the relationship between the traits of bacteria and their ability to survive and reproduce. This hypothesis can be tested through further experiments to see if it holds true.
Please help no wrong answer!!
Should medical information ever be withheld from a patient? If so, when and why?
starvation would cause which of the following acid-base conditions? also, determine what type of compensation (metabolic or respiratory) there would be
Option c is the appropriate response. With respiratory compensation, acid-base conditions caused by starvation would result in metabolic acidosis.
Respiration and metabolism are interdependent. Metabolic compensation and respiratory acidosis or alkalosis go hand in hand. Similar to metabolic alkalosis, respiratory compensation is related to metabolic acidosis. Within cells, a process known as cellular respiration uses enzymatic pathways (such as glycolysis and the Krebs cycle) to break down glucose, releasing water, carbon dioxide, and ATP in the process. Direct responses to metabolic demands are made through respiration. The lungs carry out a number of metabolic processes, such as gas exchange, the inactivation of vasoactive chemicals, the conversion of angiotensin I to angiotensin II by the angiotensin-converting enzyme (ACE), and protein synthesis.
Therefore, we can conclude that Option C is the proper response. Acid-base conditions brought on by hunger would lead to metabolic acidosis with respiratory correction.
Learn more about metabolism here:
https://brainly.com/question/29763323
#SPJ4
Complete Question:
Starvation would cause which of the following acid-base conditions? Also, determine what type of compensation (metabolic or respiratory) there would be.
A. respiratory acidosis with metabolic compensation
B. respiratory alkalosis with metabolic compensation
C. metabolic acidosis with respiratory compensation
D. metabolic alkalosis with respiratory compensation
many of the similes in the iliad compare humans to animals; during achilles' aristeia in boks 20-22, he is also repeatedly compared to .
Many of the similes in the Iliad compare humans to animals; during Achilles' aristeia in Boks 20-22, he is also repeatedly compared to a lion.
Who was Achilles?
Achilles was a Greek hero, the central character in Homer's epic poem "The Iliad". He was the son of the mortal Peleus and the sea-nymph Thetis. His most notable feat was the slaying of the Trojan champion Hector during the Trojan War. He was also known for his great strength, courage, and loyalty.
Why is Achilles repeatedly compared to a lion?
Achilles is repeatedly compared to a lion because he was known for his strength and courage in battle, similar to how a lion is known for displaying these qualities. Achilles was also known for his relentless pursuit of revenge, which is another trait that lions are known for.
To know more about Achilles,
https://brainly.com/question/3775564
#SPJ1
The mechanism by which antigen-reactive cells respond to foreign antigens while ignoring self-antigens is called clonal
A) selection.
B) deletion.
C) anergy.
D) expansion.
A) selection antigen-reactive cells respond to foreign antigens while ignoring self-antigens is called clonal.
What examples exist of self-antigens?Microproteins, nucleic acids, carbohydrates, and lipids are a few examples of self-antigen indicators.Self-antigen markers serve to stop the immune system from attacking bodily cells that it is defending.
What do you name a self-antigen?These elements, which go by the names autoantigens or self-antigens, primarily consist of proteins (or proteins complexed to nucleic acids).Autoantibodies and autoreactive T cells are the terms used to describe antibodies and T lymphocytes that identify autoantigens.
To know more about antigen-reactive cells visit:
https://brainly.com/question/13000030
#SPJ4
In humans, free ear lobes are dominant to attached ear lobes. If a child has the heterozygous genotype for this trait, what phenotype will be expressed?
The average depth of the oceans is about 4300 meters (m). Why do most of the marine organisms live in the top 200 m of the
ocean waters?
OO
Marine organisms thrive in high salinity, and the water near the surface has the highest salinity.
Marine organisms are healthier in the coldest waters, and the water near the surface is the coldest.
Many marine organisms are consumers living where food is abundant, and the water near the surface has many producers.
Many marine organisms better survive in water with a low pH, and the water near the surface has the lowest pH due to high
carbon dioxide levels.
Answer:
Option 1) Marine organisms thrive in high salinity, and the water near the surface has the highest salinity.
Hope Helps:)
In a study of hypoglycemic shock, cellular changes in
the brain are analyzed. One cell type in the hippocampus is
noted to exhibit intense cytoplasmic eosinophilia, central chromatolysis,
spheroidal swellings, and nuclear pyknosis. These
changes appear 12 hours after blood glucose levels drop below
20 mg/dL. What is this cell type most likely to be?
A Astrocytes
B Endothelial cells
C Microglia
D Neurons
E Oligodendroglia
The cell type most likely to be affected is astrocytes.
Blood-brain barrier is network of blood vessels and tissue made up of closely spaced cells. It is made up of astrocyte perivascular feet and capillary endothelial cells.
Astrocytes are the most abundant cells in the central nervous system that twine around nerve cells supporting the brain and spinal cord. They perform many functions; such as providing the neurons with nutrients, control the blood brain barrrier and blood flow. Astrocytes are basically responsible for maintaining the central nervous system homeostasis.
The purpose of the blood–brain barrier is protection from circulating toxins or pathogens that can cause brain infections, and allowing vital nutrients to reach the brain.
Therefore, the cell type most likely to be affected is astrocytes.
To know more about astrocytes, refer: https://brainly.com/question/15042216
#SPJ4
Check Your Understanding 12.1 Name 18 Where were the earliest likely anthropoid primates found, and from what epoch? 19 What two groups of primates Were found in the Fayum deposits of Egypt from the Oligocene? 20 The first hominoids appear in which epoch? (Hint: It is not the Miocene:) 21 What happened in the Miocene that allowed for emigration of early Miocene hominoids from the African continent into Europe and Asia? 22 Fill in the blanks below with names for six genera of Miocene hominoids and list the part of the world in which each was found: Fossil primate Where it was found
Africa has been home to early anthropoid primates since the Eocene Epoch.
The earliest anthropoid apes appeared as least in the late Eocene. There is disagreement over the anthropoids' ancestry, or the progenitor of monkeys and apes.
The majority of the early fossil material, which dates to the Eocene Epoch (about 56-34 mya), is discovered in North America and Europe, even though primates are assumed to have developed in Asia.
Eosimiids may also be known from the early Eocene of India, although middle Eocene deposits in China and Southeast Asia provide the greatest support for stem anthropoid origins. By the late Eocene, crown anthropoid skeletons were undoubtedly found in Africa.
To learn more about anthropoid, refer
https://brainly.com/question/13796524
#SPJ4
Osmosis is the movement of________molecules from an area of______concentration to an area of_________concentration until_________is acheived
Osmosis is the movement of water molecules from an area of higher concentration to an area of lower concentration until membrane is achieved.
What is osmosis?Osmosis is the naturally occurring net movement or diffusion of solvent molecules across a selectively permeable membrane from a region of high water potential to a region of low water potential in a manner that tends to balance the solute concentrations on the two sides.The spontaneous movement of water or other solvents through a semipermeable membrane is known as osmosis.Transport of solute molecules over a semipermeable membrane from a lower concentration of solution to a higher concentration.Osmosis lets an animal cell absorb water from the intestines into the blood. Here are some further instances of osmosis. Osmosis is responsible for the soil's ability to absorb water. In contrast to the soil, the concentration is higher in the plant roots.Water enters the roots as a result.Osmosis is the movement of a solvent toward a more concentrated solute across a semipermeable membrane. Osmosis can occur in a variety of liquids, including supercritical liquids, gases, and other liquids, despite the fact that water is frequently the solvent in biological systems.Learn more about osmosis here:
https://brainly.com/question/5833723
#SPJ1