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Please Use the Following Information to Answer the Question(s) Below

Question 31

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Please use the following information to answer the question(s) below.
Succinate dehydrogenase catalyzes the conversion of succinate to fumarate. The reaction is inhibited by malonic acid, which resembles succinate but cannot be acted upon by succinate dehydrogenase. Increasing the ratio of succinate to malonic acid reduces the inhibitory effect of malonic acid.
-What is the role of malonic acid with respect to succinate dehydrogenase?


A) It is a noncompetitive inhibitor.
B) It is a competitive inhibitor.
C) It blocks the binding of fumarate.
D) It is an allosteric regulator.

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