A series of enzymes catalyze the reaction 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? The next question is based on the following information. A series of enzymes catalyze the reaction . Product binds to the enzyme that converts to at a position remote from its active site. This binding decreases the activity of the enzyme. What is substance ? a. A substrate b. An allosteric inhibitor c. The productd. A coenzyme

When a substance binds to an enzyme at a position that is remote from its catalytic site and thereby decreases the activity of that enzyme is known as allosteric inhibitor.

Many metabolic pathways are regulated by the allosteric modulation or allosteric inhibition.

For example cytidine triphosphate an end product of denovo biosynthesis pathway of pyrimidine nucleotide allosterically inhibit the the catalytic action of Aspartate Transcarbamoylase enzyme by allosteric inhibition mechanism.

samueladesida43 samueladesida43 · Answer 2 · 2021-10-02T08:03:51+02:00

Substance X in the series of reaction is a substrate.

ENZYME AND SUBSTRATE:

An enzyme is a biological catalyst that regulates the rate at which a biochemical reaction occurs in living cells.

Enzymes act on reactants called substrates to form products. They do this by binding the substrate to their active site to form an enzyme-substrate complex, after which the product is released.

The substrate which the enzyme acts on in this reaction is substance X.

Allosteric inhibitor is a regulatory substance that binds to an enzyme in a site other than the active site to regulate its function. This depicts what product A does in this reaction.

Coenzyme is a substance that only functions in the presence of the enzyme. It assists the enzyme to perform its catalytic action.

Therefore, substance X in the series of reaction is a substrate.

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