Support cells in the central nervous system are collectively called neuroglia, or simply glial cells (glia = glue).
The source of nerve impulses is a neuron, a nerve cell with all of its activities. The most prevalent kind of supporting cell is this one. They take part in the metabolic exchange between blood and neurons. Provide neurons a supporting framework and cover all of their non-synaptic components. Non-neuronal cells called neuroglia or glial cells assist and protect neurons in the central nervous system (CNS) and peripheral nervous systems by forming myelin, maintaining homeostasis, and other functions (PNS).
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Supporting cells of the nervous system are collectively called _
A. Depolarization
B. Synapse
C. Endorphins
D. Peripheral nervous system
E. Hyperpolarization
F. Neuroglia
which sentence best describes the true nature of natural selection? a) only the strongest survive. b) the strong eliminate the weak in the race for survival. c) organisms change by random chance. d) heritable traits that promote reproduction become more frequent in a population from one generation to the next.
The true nature of natural selection can be best described as "d) heritable traits that promote reproduction become more frequent in a population from one generation to the next.
Through natural selection, traits that promote reproduction become more frequent in a population from one generation to the next. Natural selection is a method that leads to species and organism development by allowing the survival and propagation of organisms with desirable characteristics.
Natural selection is driven by the struggle for existence among organisms in a population, which leads to the death of certain organisms with undesirable characteristics and the growth of organisms with desirable characteristics that enable them to survive and reproduce.
Therefore, correct option is D.
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In rats, black coat color is dominant over white coat color. If some of the offspring of a cross between a black rat and a white rat are white, the black rat must have been A) a polyploid B) homozygous C) heterozygous D) a mutation
The correct option is C) heterozygous. Among rats, black coat color is dominant over white coat color.
The black rat must be heterozygous if some of the offspring of a cross between a black rat and a white rat are white. This indicates that the black rat carries a recessive allele for the white coat color, and the white rat carries two white coat color alleles.
Offspring refers to the young produced by an animal or plant. Heterozygous refers to having two different alleles of a particular gene or genes on corresponding chromosomes. Polyploid refers to an organism that contains more than two paired sets of homologous chromosomes .
Mutation refers to the changing of the structure of a gene, resulting in a different trait or characteristic.
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a population of arctic hares burrows into the snow for shelter. it is found that the hares on the smaller side are able to burrow between rocks, as well, providing extra protection from predators. over time, the hare population becomes smaller in size, shifting the normal distribution curve for hare size. selection type: 8. limpets are a snail species that can often be found on the seashore. they come in 3 variations: dark, light and intermediate. the dark and light colors are easier for sea gulls to spot, and therefore they are more commonly hunted. selection type: 9. if there was a great flood and lemurs that had longer tails were better able to climb and live in trees, while the other phenotypes were not able to survive as well, which type of selection would this be? selection type: 10. in a population of spiders that were hunted by sparrows, the large spiders were easy to spot, but moved very quickly; the small spiders were not very easy to spot; the average size spiders were easier to spot than the small ones, but moved more slowly than the large ones, thus making them the most hunted, which type of selection would this be? selection type: 11. in a wild leopard population, cubs that are born with low birth weights lose heat more quickly and tend to die, while babies that are too large are not able to deliver through the pelvic bones of the mother leopard. this leads to a high mortality rate for cubs that are born too
Directional selection is the term used to explain the type of selection illustrated in the arctic hare scenario. Due to their ability to burrow into tighter areas, the smaller hares have an edge.
What is the purpose of camouflage for the Arctic hare?They have a bright white coat that serves as good concealment in the region of ice and snow throughout the winter. The hare's colours change to a blue-gray hue in the spring to resemble nearby rocks and flora.
What behavioural adaptations do Arctic hares have?Although Arctic hares are solitary animals, during the colder months they wander and gather in large groups with up to 100 members to avoid predators and stay warm. They gather behind a tree for comfort during snowstorms.
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While on a hike you find Quant plants with blue flowers and Quant plants with white flowers surrounding a secluded lake. You do the unthinkable and take four Quant plants back to the lab, none of which have flowers yet. Luckily when flowers emerge you notice that you have two plants with blue flowers and two white flower bearing plants. You allow these plants to self with the following results and then complete two crosses. 3. Progeny Number White Blue 89 Pollination Blue plant #1 (self) white plant #1 (self) Blue plant #2 (self) White plant #2 (self) 38 18 59 54 | Blue #1 x White #2 Blue #2 x white #1 62 38 How many genes are involved in Quant flower petal pigmentation? Describe type of dominance is exhibited by the genels) and alleles? What are the genotypes of the four plants you brought back to the lab? what genotypic and phenotypic ratios would you expect if you crossed Blue #1 with white #1?
There are two genes involved in Quant flower petal pigmentation, and the type of dominance exhibited is incomplete dominance and the expected phenotypic ratio will be 1:1.
What is the phenotypic ratio?The genotypes of the four plants brought back to the lab are two blue homozygous plants (BB), one white homozygous plant (ww), and one heterozygous plant (Bw). If we crossed Blue #1 with White #1, it is expected to have a genotypic ratio of 1 Blue homozygous (BB) to 1 White homozygous (ww) and a phenotypic ratio of 1 Blue flower (Bw) to 1 White flower (Bw).
The color of the flower in Quant plants can be determined by two genes involved in flower pigmentation. Each gene has two alleles, and each of the alleles shows a co-dominant expression. The genotypes of the four plants that were brought to the lab are not known. A total of four genotypes is possible. These are; White - homozygous recessive (ww), White - heterozygous (Ww), Blue - heterozygous (Bw), and Blue - homozygous dominant (BB).
In the cross of Blue #1 with white #1, the genotypic and phenotypic ratios that would be expected are as follows; Phenotypic ratio: 1: 1, Genotypic ratio: 1 WW: 1 Bw.
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What are considered small intestine brush border enzymes participating in carbohydrate digestion? Dextrinase, Lactase, and Sucrase.
The small intestine brush border enzymes participating in carbohydrate digestion are Dextrinase, Lactase, and Sucrase.
What is digestion?Digestion is the process of breaking down food into small molecules that can be absorbed into the bloodstream. Digestion starts when food is consumed and enters the mouth. The digestive system comprises the mouth, esophagus, stomach, pancreas, liver, gallbladder, small intestine, and large intestine.
Small intestine brush border enzymesSmall intestine brush border enzymes are a group of digestive enzymes that are synthesized and secreted by enterocytes (epithelial cells lining the intestine) on the brush border surface of the intestinal lining.
The small intestine brush border enzymes are divided into three groups, depending on the type of nutrients they digest:
Carbohydrate-digesting enzymes: Sucrase, Lactase, Maltase, and Dextrinase are small intestine brush border enzymes participating in carbohydrate digestion.
Peptidase: They are enzymes that break down proteins into smaller peptides and amino acids.
Lipase: They are enzymes that break down fats into fatty acids and glycerol.Therefore, Dextrinase, Lactase, and Sucrase are small intestine brush border enzymes that participate in carbohydrate digestion.
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which of the following occurs when an enzyme binds a non-competitive inhibitor? group of answer choices the kd will increase but vmax will not change the vmax will decrease but kd will not change kd will increase and vmax will decrease there is not enough information
When an enzyme binds a non-competitive inhibitor, the vmax will decrease but the kd will not change.
An enzyme is a protein that acts as a biological catalyst by increasing the rate of chemical reactions in living organisms. The substrate is the molecule that an enzyme catalyzes, while the active site is the region of the enzyme where the substrate binds.
An enzyme inhibitor is a chemical or molecule that inhibits the action of an enzyme. Non-competitive inhibitors can bind to the enzyme either at the active site or at an allosteric site. The activity of the enzyme is decreased by non-competitive inhibitors that bind to allosteric sites.
As a result, the Vmax (maximum velocity of the reaction) decreases, but the Kd (dissociation constant) does not change. This implies that the affinity of the enzyme for the substrate does not alter.
The Michaelis-Menten equation can be used to study the effect of enzyme inhibitors on enzyme-catalyzed reactions.
Therefore, when an enzyme binds a non-competitive inhibitor, the Vmax will decrease, but the Kd will not change.
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how are the antennae chelipeds, other walking legs, and swimmerets related?
They're all just limbs. The long antennae are utilised to physically sense a place, such the crevice's contours.
The tiny antennules are used to detect motion in the water, which may also be a sign of food, a fling, or danger, as well as to aid the creature in smelling for food, mates, or harmful predators. The antennae in crayfish come in two pairs. The brief pair is referred to as an antennule. Food and water are tasted through antennae. The crayfish's long antennae are employed for their touch sense, which aids in helping them locate food and detect vibrations from nearby predators.
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A teenager swears at the dinner table, and as a result, her parents take away her iPad for one week. The teenager is now much less likely to swear at the dinner table, illustrating:
A) positive punishment.
B) positive reinforcement.
C) negative punishment.
D) negative reinforcement.
The teenager is now much less likely to swear at the dinner table, illustrating negative punishment. Therefore, the correct option will be C.
What is Negative Punishment?Negative punishment is a behavior-reducing process. It entails the removal of a desirable stimulus or a reduction in the availability of it, resulting in a reduction in behavior's likelihood to occur. Negative punishment is demonstrated when a specific action leads to the withdrawal of a stimulus, making it less likely for that action to occur in the future.
The best example of negative punishment is where the parents of the teenage girl took away her iPad for a week after she swore at the dinner table.
Thus, the correct option will be C.
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Watson and Crick, the pair of researchers who determined the structure of DNA, deduced the pairing of nucleotides in DNA using information learned from Erwin Chargaff. Which of the following is the correct pairing of nucleotides in DNA?a guanine with adenine; cytosine with adenineb adenine with thymine; guanine with cytosinec cytosine with guanine; uracil with adenined cytosine with adenine; thymine with guanine
The correct pairing of nucleotides in DNA is:
Adenine with thymineGuanine with cytosine.DNA stands for deoxyribonucleic acid, which is a long, spiral-shaped molecule containing genetic information about the development and function of all living organisms. DNA is composed of four nucleotide bases that are paired with each other: adenine (A), thymine (T), cytosine (C), and guanine (G). DNA is the fundamental genetic material present in all living organisms and has a fundamental role in determining the development and function of cells in the human body. The pairing of nucleotides in DNA: Adenine pairs with thymine (A-T) and guanine pairs with cytosine (G-C), In DNA, nucleotide pairs are held together by hydrogen bonds between the complementary base pairs.
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T/F: cell division in both bacterial and eukaryotic cells produces genetically cells.
True. Prokaryotes reproduce via binary fission, which is a rather simple process. Each copy of a single chromosome attaches to a different location on the cell membrane when it multiplies.
Following this, the cell membrane begins to invade, ultimately dividing into two genetically identical bacteria. Similar methods are used to replicate mitochondria in eukaryotic cells, although the process is more challenging overall.
Mitosis, which involves dividing into two genetically identical cells, is the process by which eukaryotic cells replicate themselves. Mitosis is the process by which new cells are produced during the embryonic development and after birth, as well as by which cells that have died or shed are replaced. In humans, some cells can keep dividing even after death. These "stem cells" multiply through mitosis to produce daughter cells.
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what is the name for mammals who keep their young in pouches?
The name for mammals who keep their young in pouches is marsupials.
Marsupials are a group of mammals that give birth to relatively undeveloped young that complete their development in the mother's pouch. The young are born after a short gestation period of just a few weeks, which is followed by a long nursing period.
During this time, the young rely on the mother's milk for nutrition and are sheltered within her pouch, where they are kept warm and protected from predators.Marsupials are found mainly in Australia and the Americas. Some examples of marsupials include kangaroos, wallabies, koalas, opossums, and wombats.
The pouch varies in size and shape depending on the species and provides a protected environment where the young can grow and develop without being exposed to the dangers of the outside world.
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Why is an action potential an all-or-none response
An action potential is an all-or-none response because it is triggered when the membrane potential of a neuron reaches a certain threshold level, at which point an action potential is initiated and propagated down the axon.
The threshold level is a specific voltage that must be reached in order to trigger an action potential. Once the threshold level is reached, the action potential will always be the same size and duration, regardless of the strength of the stimulus that triggered it. In other words, the response of the neuron is "all-or-none" - it either fires an action potential or it does not, and the size and duration of the action potential are constant.
This is because the initiation and propagation of an action potential depend on the opening and closing of ion channels in the neuron's membrane. When the membrane potential reaches the threshold level, voltage-gated ion channels open, allowing positively charged ions (such as sodium) to rapidly flow into the neuron, depolarizing the membrane and initiating an action potential.
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is the genetic code is said to be because more than one codon can specify the same amino acid?
Yes. The genetic codes have degenerates and multiple codes can specify a single amino acid.
The genetic codesYes, the genetic code is said to be degenerate or redundant because more than one codon can specify the same amino acid.
There are 20 different amino acids commonly found in proteins, but there are 64 possible codons in the genetic code, which means that most amino acids are specified by more than one codon.
This redundancy provides a degree of error tolerance to the genetic code, as a mutation in a single nucleotide may not necessarily result in a different amino acid being incorporated into the protein.
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two agronomists analyzed the same data, testing the same null hypothesis about the proportion of tomato plants suffering from blight. one rejected the hypothesis but the other did not. assuming neither made a mistake in calculations, which of these possible explanations could account for this apparent discrepancy? i. one agronomist wrote a one-tailed alternative hypothesis, but the other used 2 tails. ii. they wrote identical hypotheses, but the one who rejected the null used a higher a - level. iii. they wrote identical hypotheses, but the one who rejected the null used a lower a - level.
Option (ii), where both agronomists wrote identical hypothesis but one rejected the null, is the most plausible cause of the apparent disparity between them.
What is the null hypothesis used to assess if the means of two distinct populations differ?The null hypothesis asserts that: the difference between the two population means is not substantially different from zero when testing for differences between the means of two independent populations.
What is the called null hypothesis rejection probability when it is true?The degree of statistical significance (also known as alpha) is the probability of making a type I error, which is rejecting the null hypothesis when it is actually true.
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which component is not directly involved with transcription? group of answer choices trna mrna dna rutp
Answer: The component that is not directly involved with transcription is RUTP. RNA Uracil Triphosphate (RUTP) is a cofactor used in the synthesis of proteins but is not directly involved in the process of transcription.
Explanation: Transcription is the process in which genetic information encoded in DNA is used to create messenger RNA (mRNA). This process is an important step in the production of proteins, which are essential for the growth, development, and function of all living organisms.
The steps involved in the transcription process are as follows:
Initiation: RNA polymerase binds to the promoter region of DNA and starts transcribing the DNA molecule.
Elongation: RNA polymerase reads the DNA sequence and synthesizes a complementary RNA strand.
Termination: RNA polymerase stops synthesizing RNA when it reaches a terminator sequence, which marks the end of the gene.
The components involved in transcription are as follows:
mRNA (messenger RNA): This is the RNA molecule that carries the genetic information from DNA to the ribosome.
TRNA (transfer RNA): This is the RNA molecule that carries amino acids to the ribosome, where they are assembled into a protein.
RNA polymerase: This is the enzyme that catalyzes the synthesis of RNA from a DNA template.
Ribosomes: These are the cellular structures where protein synthesis occurs.
DNA (Deoxyribonucleic acid): DNA stores the genetic code that is used to synthesize RNA, which, in turn, is used to synthesize proteins.
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as you lean your arm against the front edge of your desk, you are compressing vessels and thereby decreasing the diameter of those vessels. as this occurs, you should expect blood flow toward your hand to increase. (true or false)
It is FALSE as you lean your arm against the front edge of your desk, you are compressing vessels and thereby decreasing the diameter of those vessels. as this occurs, you should expect blood flow toward your hand to increase.
The passage of blood through the circulatory system is referred to as blood flow. The heart pumps blood through a network of blood vessels, including arteries, veins, and capillaries, to transport it throughout the body. Delivering nutrition and oxygen to tissues, eliminating waste, and controlling body temperature all depend on blood flow.
Vascular compression can cause blood flow to decrease because it reduces the diameter of the vessels. As a result, you should anticipate a drop in blood flow to your hand rather than an increase as you lean your arm against the front edge of your desk and compress the veins.
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To help explain how it might be that Jonah could have lost voluntary motor function of his legs and still be able to feel, the doctor drew out a simple sensory and motor pathway.
Drag and drop the labels to describe the proper order of sensory input and motor output.
Labels read as:
1.) Somatic sensory neuron to dorsal horn of spinal cord
2.) Internueron between thalamus and primary somatosensory cortex
3.) Internueron from primary motor cortex to ventral horn of spinal cord in lumbar region
4.) Internuerons through white matter of spinal cord to thalamus
5.) Somatic motor neuron from ventral horn of spinal cord to skeletal muscles of leg.
The correct order of sensory input and motor output:
1.) Somatic sensory neuron to dorsal horn of spinal cord.
4.) Internuerons through white matter of spinal cord to thalamus.
2.) Internueron between thalamus and primary somatosensory cortex.
3.) Internueron from primary motor cortex to ventral horn of spinal cord in lumbar region.
5.) Somatic motor neuron from ventral horn of spinal cord to skeletal muscles of leg.
Sensory input is the transmission of impulses from the peripheral sensory receptors to the central nervous system (CNS) where they are processed and analyzed. The neurons that respond to stimuli and transmit the information to the CNS are called sensory neurons.
Motor output, on the other hand, refers to the transmission of impulses from the CNS to the effectors such as muscles, glands, and organs. Motor neurons, also known as efferent neurons, transmit information from the CNS to the periphery of the body.
The order of sensory input and motor output is as follows:
Somatic sensory neuron to dorsal horn of spinal cord. This neuron responds to a stimulus and sends an impulse to the dorsal horn of the spinal cord, which is the first site of synaptic processing.Internuerons through white matter of spinal cord to thalamus. These neurons relay the impulse to the thalamus, where it is processed and filtered before being transmitted to the cortex.Internueron between thalamus and primary somatosensory cortex. This neuron receives the impulse from the thalamus and carries it to the primary somatosensory cortex, which is responsible for processing and interpreting somatic sensory information.Internueron from primary motor cortex to ventral horn of spinal cord in lumbar region. This neuron receives motor commands from the primary motor cortex and sends them to the ventral horn of the spinal cord, which contains motor neurons that control the muscles of the body.Somatic motor neuron from ventral horn of spinal cord to skeletal muscles of leg. This neuron receives the motor command from the spinal cord and sends it to the skeletal muscles of the leg, which are the effectors that produce the desired response.Learn more about Sensory input:
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elevated portions of the cerebral cortex are called
Elevated portions of the cerebral cortex are called gyri (singular: gyrus).
What is gyri?
Gyri (singular gyrus) are elevated folds or ridges in the cerebral cortex of the brain. They are the prominent curved structures between the sulci, which are the shallow grooves on the surface of the brain. The gyri increase the surface area of the cerebral cortex, allowing for more neurons and synapses to be packed into a relatively small space. The arrangement and patterns of gyri and sulci are unique to each individual and form the basis for identifying different areas of the cerebral cortex.
What is cerebral cortex ?
The cerebral cortex is the outer layer of the brain that covers the cerebrum. It is involved in a variety of functions such as perception, voluntary movement, language, learning, and memory. It is composed of folded gray matter and contains approximately 20 billion neurons and 300 trillion synapses, making it one of the most complex structures in the human body.
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Complete question is: Elevated portions of the cerebral cortex are called gyri
What is it called when a foreign gene is inserted into an organism?
When a foreign gene is inserted into an organism, it is referred to as genetic engineering.
Genetic engineering is the method of modifying the genetic material of an organism, either by direct gene transfer or by selective breeding, to obtain desirable traits or to get a better understanding of the organism's genetics. It entails inserting, deleting, or changing genes in an organism's genetic code.The foreign gene is introduced into the organism by a vector. A vector is a carrier that carries genetic material from one organism to another. Plasmids, bacteriophages, and viral vectors are some of the most common vectors used in genetic engineering.
The foreign gene, for example, is isolated from its original organism and then inserted into a vector, which then carries it into the host organism.The new genetic material is then incorporated into the host organism's DNA. If it is carried out in a gamete, it will be inherited by the organism's progeny, resulting in genetic modification or genetic engineering of the species. The introduced gene might come from a different species, a natural variant of the organism, or a totally artificial construct, such as a gene designed to treat a genetic illness. The technique has a variety of uses, including biotechnology, agriculture, and medicine.
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Long hair in Irish Setters is dominant
(L) to short hair (I). A male homozygous
for long hair is crosses with a female
heterozygous for long hair
1.What genotypes and in what proportion could this cross produce ?
2.what phenotypes and in what proportions could this cross produce
what type of sensory memory is categorized as auditory memory?
The type of sensory memory that is categorized as auditory memory is called echoic memory.
Echoic memory refers to the brief retention of auditory information that is heard for a few seconds after the sound has ended. This memory system allows the brain to process and make sense of sounds, such as speech or music, and to remember them briefly even after they are no longer present.
The duration of echoic memory can be up to 10 seconds, depending on the complexity of the auditory information and the level of attention paid to it. Echoic memory is a crucial component of language processing and is important for communication and comprehension.
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What is the ICD-10 code for lower extremities Cellulitis?
ICD-10 is a coding system used by healthcare providers and insurance companies to identify and classify diseases and medical conditions. The ICD-10 code for lower extremities cellulitis is L03.115.
The code L03.115 is specifically used to indicate a diagnosis of cellulitis of the lower limb, including the foot, ankle, and leg.
Cellulitis is a bacterial skin infection that occurs when bacteria enter the skin through a cut or wound, causing redness, swelling, warmth, and pain. It is a common infection that can affect any part of the body, but it is most commonly found in the lower extremities.
The ICD-10 code L03.115 is used to communicate a diagnosis of lower extremities cellulitis to other healthcare providers and insurance companies. It is important to use the correct code when submitting claims for reimbursement or when communicating with other healthcare providers to ensure that the correct diagnosis is communicated and appropriate treatment is provided.
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scientists hypothesize that over millions of years, the y chromosome has lost genes to the x chromosome. during what stages of meiosis might the y chromosome have transferred genes to the x chromosome? explain.
Scientists hypothesize that over millions of years, the Y chromosome has lost genes to the X chromosome. In meiosis, the X and Y chromosomes pair during the pachytene stage. As a result, DNA recombination occurs.
The non-homologous regions of the X and Y chromosomes are unpaired. As a result, the Y chromosome will act as a substrate for meiotic recombination. As a result, some genes are transferred from the Y chromosome to the X chromosome.
A mutation in the male-determining chromosome (the Y chromosome) will be passed on to subsequent generations without any opportunity for recombination, as males only have one copy of this chromosome.
As a result, the Y chromosome will be more susceptible to mutational deterioration than the X chromosome, which is more frequently recombined in both sexes. This is one of the reasons that the Y chromosome is used to track evolutionary relationships within species.
The X chromosome is also subject to mutation and recombination, but because females have two copies of this chromosome, it is not as susceptible to loss.
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Choose all descriptions in the following list that apply to regulation by phosphorylation/dephosphorylation 1. Depends on concentration of etfector Requires an enzyme to activate or inactivate the protein 3. Uses single enzyme for activation and inactivation of the protein 4. Involves non-covalent binding of regulating molecule 5. Involves covalent bond(s) Is always positive; that is, having the effector or phosphate group bound to the protein activates the protein 7. Involves binding of something to site different from the functional (active) site of the protein 8. Causes conformational changes in the protein affecting the functional (active) site_ A 1,24,6 B. 2,3.7.8 C.2,3,5,8 D.1,4,7.8 E. 2.5,7,8
The correct choice for descriptions that apply to regulation by phosphorylation/dephosphorylation is option C: 2, 3, 5, 8. The following descriptions apply to regulation by phosphorylation/dephosphorylation.
They are: Depends on the concentration of the effector, Requires an enzyme to activate or inactivate the protein, Involves non-covalent binding of regulating molecules, Causes conformational changes in the protein affecting the functional (active) site.
Regulation by phosphorylation/dephosphorylation is a significant post-transcriptional modification of proteins. The process includes the addition of phosphate groups (phosphorylation) to protein molecules by protein kinases and their subsequent removal (dephosphorylation) by protein phosphatases.Protein kinases and protein phosphatases are in charge of regulating protein activity by adding or removing phosphate groups. The functional activity of the protein is altered when these enzymes alter the state of phosphorylation of a particular protein. For a protein to be phosphorylated, it must have a phosphorylation site. The amino acids serine, threonine, and tyrosine are typical sites of protein phosphorylation.
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HELP I HAVE 1 MINUTE
How do air pressure and precipitation determine the weather in a certain area?
When the air pressure is higher, the air is cooler, and it is less likely for precipitation to fall.
When the air pressure is lower, it is harder for evaporation to occur and for the rain to form.
When the air pressure is higher, the humidity is higher, and the chance of precipitation is lower.
When the air pressure is higher, the air is warmer, and the chance of precipitation is higher.
When the air pressure is higher, the air is cooler, and it is less likely for precipitation to fall.
(As air rises in low-pressure systems, it cools and often condenses into clouds and precipitation, resulting in storms. In high-pressure systems, the air sinks toward the Earth and warms upward, leading to dry and fair weather.)
Answer: When the air pressure is higher, the air is cooler, and it is less likely for precipitation to fall
Explanation:
Where are the low-energy electrons located after the electron transport chain is completed?- They are recycled to earlier steps in the process.- They are added to H+ to form H.- They are located in the cytoplasm, where they contribute to the overall negative charge of the cell.- They are located in the bonds of H2O.- They are located in the bonds of ATP after chemiosmosis.
The low energy electrons after the electron transport chain (ETC) is completed: (4) They are located in the bonds of H₂O.
ETC is a series of electron transporters present in the inner mitochondrial membrane and the thylakoid of chloroplast through which the electrons are transported. This process is coupled with the formation of proton gradient which is used to generate energy components like ATP and NADPH.
The low energy electrons are the same high energy electrons at the beginning of the ETC. After passing through the series of transporters they lose their energy and complete the process by reducing the available oxygen molecule by the formation of water (H₂O).
Therefore the correct answer is option 4.
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Which of the following examples does NOT demonstrate the principles of homeostasis? A: An increase in plasma volume increases urination B: An increase in body temp induces sweating, which reduces body temp C: A rise in plasma sodium stimulates the production of a hormone that increases sodium loss in the urine. D: The activation of a clotting factor stimulates the production of the enzyme that activates the clotting factor.
The example that does not demonstrate the principle of homeostasis is option D. The activation of a clotting factor stimulates the production of the enzyme that activates the clotting factor.
This example does not demonstrate the principles of homeostasis because homeostasis is the body's ability to maintain a stable internal environment in response to external changes. In this example, the body does not respond to any external changes, rather it is self-regulating by producing an enzyme that activates the clotting factor.
Homeostasis is usually maintained through feedback mechanisms and the regulation of hormones, but this example does not illustrate this process.
The other three examples do demonstrate the principles of homeostasis.
A: An increase in plasma volume increases urination. This example illustrates a homeostatic response. When plasma volume increases, the body increases urination to maintain a stable internal environment.
B: An increase in body temperature induces sweating, which reduces body temperature. This is another example of a homeostatic response as the body regulates its temperature in response to external changes.
C: A rise in plasma sodium stimulates the production of a hormone that increases sodium loss in the urine. This is an example of a homeostatic response as the body produces a hormone to respond to the change in sodium levels and regulate the body to maintain a stable internal environment.
Therefore, the correct answer is option D.
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The neurons that stimulate muscle contraction are called _____ neurons. sensory contractile inhibitory → motorassociation
The neurons that stimulate muscle contraction are called motor neurons. Neurons are specialized cells that communicate with one another and transfer information from one region of the brain to another.
In the nervous system, these cells are the building blocks. Neurons are responsible for transmitting electrical and chemical signals in the body, and they make up the nervous system. When it comes to transmitting signals, neurons are divided into three categories. They are sensory neurons, motor neurons, and interneurons.Motor neurons:Motor neurons are a type of neuron that helps in the transmission of signals from the brain or spinal cord to muscles or other organs. They are responsible for sending messages from the central nervous system (CNS) to the body's effector organs (muscles and glands).
The neuron that stimulates muscle contraction is known as a motor neuron. Motor neurons are involved in generating voluntary or involuntary movement of muscles. The central nervous system's motor neurons are involved in activities such as movement and posture control, while the peripheral nervous system's motor neurons control muscle contractions. In conclusion, the neurons that stimulate muscle contraction are called motor neurons.
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watson and crick proposed the double helix structure model for dna in 1953. which of the following facts was not useful to them in deciding on the molecular model they proposed?
Watson and Crick proposed the double helix structure model for DNA in 1953. The following facts was not useful to them in deciding on the molecular model they proposed is Meselson and Stahl's evidence that DNA replicated semi-conservatively.
Watson and Crick used various facts to determine the molecular model they proposed, including the following: Chargaff's Rule, this rule shows that the amount of adenine, thymine, guanine, and cytosine in DNA is constant. It also demonstrates that adenine and thymine are complementary base pairs, while guanine and cytosine are complementary base pairs.
X-ray crystallography, the X-ray diffraction pattern of the DNA molecule, discovered by Rosalind Franklin and Maurice Wilkins, aided Watson and Crick in constructing the double helix structure model of DNA. The double helix structure model of DNA, Watson and Crick constructed the double helix structure model of DNA based on the complementary base pairing of adenine and thymine and guanine and cytosine. The complementary base pairs' weak hydrogen bonds form between the two strands of the helix, stabilizing the double helix structure.
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suppose all poaching could be stopped and no more elephants would be slaughtered for Tusk ivory. what would future populations of African forest elephants look like? would any elephants be Born tuskless? explain.
Comparing historical videos to contemporary footage revealed an increase from 19% to 51% in the percentage of female elephants lacking tusks, despite the population declining.
TuskThirty percent of females born after the war lack tusks.A pair of information chromosomes—XX for females and XY for males—determines the sex of mammals. The Princeton biologists hypothesized that the tuskless feature was connected to the X since tusks are almost universally present in male elephants. If the genes responsible for developing tusks are fatal when found on a male's single X chromosome, a female with two Xs may be saved provided they inherit one healthy copy of the gene. Such theory is supported by the tuskless trait's genetic inheritance pattern.For more information on elephant poaching kindly visit to
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