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A Series of Enzymes Catalyse the Reactions in the Metabolic

Question 61

Multiple Choice

A series of enzymes catalyse the reactions in the 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 decreases the activity of the enzyme. What is substance X?


A) an allosteric inhibitor
B) a substrate
C) an intermediate
D) the product

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