A Series of Enzymes Catalyze the Reactions Illustrated in the Following

question 78

Multiple Choice

A series of enzymes catalyze the reactions illustrated in the following metabolic pathway:
X → Y → Z → A.Product A binds to the enzyme that converts X to Y at a position remote from its active site.This binding of A decreases the activity of the enzyme that converts X to Y.What is substance X?

• A)a coenzyme
• B)an allosteric inhibitor
• C)an intermediate
• D)a substrate

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