Question Details

The control and regulation of biological processes involve some enzymes. They are known as

Options

A

inhibitors

B

activators

C

regulators

D

allosteric enzymes

Correct Answer :

allosteric enzymes

Solution :

The correct option is allosteric enzymes.

Enzymes are biological catalysts that speed up chemical reactions in living organisms. To maintain homeostasis and respond to changing cellular conditions, biological processes must be precisely controlled and regulated. This regulation is primarily achieved through a specific class of enzymes known as allosteric enzymes.

Allosteric enzymes possess a unique structural feature: they have an active site, where the substrate binds to undergo the chemical reaction, and one or more distinct regulatory sites called allosteric sites. Binding of a regulatory molecule (either an effector, inhibitor, or activator) to the allosteric site induces a conformational change in the enzyme's structure. This change either increases or decreases the enzyme's activity, thereby regulating the rate of the metabolic pathway.

While the terms "inhibitors" and "activators" refer to the molecules that modulate enzyme activity, and "regulators" is a broad general term, the actual enzymes that are physically responsible for this control and regulation of biological processes through these interactions are specifically classified as allosteric enzymes.

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