Aseries 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

Substance X is the reactant molecule.

The substance is an allosteric inhibitor .

Explanation:

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.

Substance X in the series of reaction is a substrate.

ENZYME AND SUBSTRATE:

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

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

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