Regarding catalytic cycle of an enzyme action, select the correct sequential steps:A. Substrate enzy

Question

Regarding catalytic cycle of an enzyme action, select the correct sequential steps:

A. Substrate enzyme complex formation.

B. Free enzyme ready to bind with another substrate.

C. Release of products.

D. Chemical bonds of the substrate broken.

E. Substrate binding to active site.

Choose the correct answer from the options given below:

Accepted Answer

Sol. [Key Concept: Enzyme catalytic cycle]The correct sequence is E–A–D–C–B. The substrate binds at the active site, forming an enzyme–substrate complex. Catalysis changes substrate bonds, products are released, and the enzyme is available for another cycle. Hence, option (3). Bond breaking is the listed catalytic step; enzymes may also catalyse bond formation in other reactions.

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