Consider the biochemical pathway used to synthesize the amino acid proline. Based on the concept of feedback inhibition, an increase in the level of proline will most likely lead to Multiple Choice a decrease in proline production. no change in the rate of proline production. proline being converted to aspartate. a further increase in proline production. increased breakdown of proline.
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Step 1: The question asks about the effect of an increase in proline levels on its own synthesis, based on the concept of feedback inhibition. Show more…
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Qudsiya A.
Suppose a person has a diet insufficient in certain non-essential amino acids. (Non-essential amino acids are those that humans ARE capable of synthesizing.) Consider a non-essential amino acid synthesised from a glycolysis intermediate. In order to synthesize this intermediate, some of the glycolysis intermediate will be taken out of the glycolysis pathway and instead be converted to the amino acid. Which of the following is true? None of the other answers is correct. The person will produce more ATP from glucose than if his or her diet were sufficient in the amino acid, and he or she ate the same amount of glucose. The person will produce less pyruvate from glucose than if his or her diet were sufficient in the amino acid, and he or she ate the same amount of glucose, but will produce the same amount of ATP from the glucose. The person will produce more pyruvate from glucose than if his or her diet were sufficient in the amino acid, and he or she ate the same amount of glucose. The person will produce less pyruvate from glucose than if his or her diet were sufficient in the amino acid, and he or she ate the same amount of glucose.
Supreeta N.
Pyrimidines are synthesized through a long series of reactions beginning with the amino acid aspartate. The ribonucleotide CTP is one of the final compounds in this reaction pathway, and when the cell has enough CTP, it binds to and inhibits the enzyme that catalyzes the first reaction in the pathway, aspartate transcarbamoylase (ATCase). This is most likely an example of: Competitive inhibition Allosteric activation Allosteric inhibition Direct feedback inhibition End-product inhibition Both allosteric inhibition and end-product inhibition Both competitive inhibition and direct feedback inhibition
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