Which of the following is an intermediate in an enzyme-catalyzed reaction?
A) an apoenzyme
B) a coenzyme-substrate complex
C) an enzyme-substrate complex
D) a zymogen

Question

Quizplus · Accepted Answer

The intermediate in an enzyme-catalyzed reaction is the enzyme-substrate complex, formed when the enzyme binds to the substrate to facilitate the reaction. A is incorrect because an apoenzyme is an enzyme without its necessary coenzyme or cofactor. B is incorrect because a coenzyme-substrate complex involves the binding of a coenzyme to the substrate, not the enzyme itself. D is incorrect because a zymogen, also known as a proenzyme, is an inactive precursor of an enzyme and is not involved in the actual catalysis of the reaction.

Which of the Following Is an Intermediate in an Enzyme-Catalyzed