Feedback Inhibition: A. is a means of regulating the amount of product produced. B. can involve inhibiting a reaction in the middle of a pathway. C. can involve inhibiting the last series of reactions. D. Often involves the use of allosteric enzymes. E. All of the above choices are correct.
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Feedback inhibition is a way to regulate the amount of product produced by a metabolic pathway. When the product accumulates, it can bind to an enzyme earlier in the pathway, inhibiting its activity and reducing the production of the product. So, A is correct. B. Show more…
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Which statement about feedback inhibition of enzymes is not true? $a .$ It is exerted through allosteric effects. b. It is directed at the enzyme that catalyzes the first committed step in a branch of a pathway. c. It affects the rate of reaction, not the concentration of enzyme. $d$. It acts very slowly. $e .$ It is an example of negative feedback.
Which of the following is incorrect about feedback inhibition control of an enzyme a. the allosteric interaction is irreversible b. Usually the first enzyme in a biosynthetic pathway is subject to feedback inhibition c. enzyme activity is inhibited when product concentrations reach a specific level d. This inhibition is mediated by an allosteric interaction
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Which statement concerning feedback inhibition is false? Choose one: A. Feedback inhibition is difficult to reverse. B. Feedback inhibition can work almost instantaneously. C. Feedback inhibition regulates the flow through biosynthetic pathways. D. Feedback inhibition is a feedback system for controlling enzyme activity. E. In feedback inhibition, an enzyme acting early in a reaction pathway is inhibited by a later product of that pathway.
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