Class 11 · Biomolecules

Enzyme Catalytic Cycle & Steps — NEET Biology

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The catalytic cycle of an enzyme action can be described in the following steps:

NCERT Biology · Class 11 · Chapter 9 · Paragraph 43
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Arrange the following events of an enzyme's catalytic cycle in the correct chronological sequence: (A) Substrate (S) binds to the active site of the enzyme (E). (B) The enzyme undergoes a conformational change to fit more tightly around the substrate (induced fit). (C) Formation of a transient Enzyme-Substrate (ES) complex. (D) The active site facilitates the transformation of the substrate into product(s), forming an Enzyme-Product (EP) complex. (E) Product(s) are released from the active site. (F) The free enzyme becomes available for further catalytic cycles.

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