Please use the following information to answer the question(s) below.
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 decreases the activity of the enzyme.
-What is substance X?
A) a coenzyme
B) an allosteric inhibitor
C) an intermediate
D) a substrate

Question

Quizplus · Accepted Answer

Substance X is the substrate because it is being converted into product Y by the enzyme.

Answer: B
 Product A binds to the enzyme that converts X to Y at a position remote from its active site, causing a decrease in enzyme activity. This type of inhibition is known as allosteric inhibition.

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