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Chapter 8

Question:

Succinate dehydrogenase catalyzes the conversion of succinate to fumarate. The reaction isinhibited by malonic acid, which resembles succinate but cannot be acted upon by succinatedehydrogenase. Increasing the ratio of succinate to malonic acid reduces the inhibitory effect ofmalonic acid.

Based on this information, which of the following is correct?

A) Succinate dehydrogenase is the enzyme, and fumarate is the substrate.

B) Succinate dehydrogenase is the enzyme, and malonic acid is the substrate.

C) Succinate is the substrate, and fumarate is the product.

D) Fumarate is the product, and malonic acid is a noncompetitive inhibitor.

E) Malonic acid is the product, and fumarate is a competitive inhibitor.



Answer:

C) Succinate is the substrate,and fumarate is the product.



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Last update by mayur on 03/27/2014
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Chapter 8
Chapter 8
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Question: Succinate dehydrogenase catalyzes the conversion of succinate to fumarate. The reaction isinhibited by malonic acid, which resembles succinate but cannot be acted upon by succinatedehydrogenase. Increasing the ratio of succinate to malonic acid reduces the inhibitory effect ofmalonic acid. Based on this information, which of the following is correct? A) Succinate dehydrogenase is the enzyme, and fumarate is the substrate. B) Succinate dehydrogenase is the enzyme, and malonic acid is the substrate. C) Succinate is the substrate, and fumarate is the product. D) Fumarate is the product, and malonic acid is a noncompetitive inhibitor. E) Malonic acid is the product, and fumarate is a competitive inhibitor.
Answer: C) Succinate is the substrate,and fumarate is the product.