The steps in catalytic cycle of an enzyme action are given …

Biology Biomolecules Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 20, 2026

The steps in catalytic cycle of an enzyme action are given in random order -

(I) The enzyme releases the products. Now enzyme is free to bind another substrate

(II) The active sites, now in close proximity of substrate breaks the bond of substrate and E-P complex forms

(Ill) Binding of substrate induces the enzyme to alter its shape fitting more tightly around the substrate

(IV) The substrate binds to the active site of enzyme (i .e. fitting into the active site.

The correct order is -

I, II, III, IV

IV, III, II, I

I, III, II, IV

I, II, IV, Ill

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