Enzyme regulation by negative feedback involves
A. allosteric facilitation of an enzyme by a substrate of its metabolic pathway.
B. occupation of the active site of an enzyme so that it catalyzes less efficiently.
C. allosteric inhibition of an enzyme by a product of its metabolic pathway.
D. allosteric modification of a substrate by an enzyme of an alternate metabolic pathway.
E. enhancement of the active site by a negatively charged substrate.
Answer: C
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