Biology Enzymes DUHS 2022
PMDC Verified Question 48 of 79
When substrate combines the active site of an enzyme it induces a conformational changes that enable enzyme to perform:
A
Catalytic function
B
Meiosis
C
Metabolism
D
Analytic function
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Catalytic function
Concept:

The active site of an enzyme is functionally divided into a binding site and a catalytic site. The Induced Fit model explains how these two cooperate.

Solution:

  • First, the substrate attaches securely to the binding site.
  • This binding physically induces a conformational (shape) change in the overall active site.
  • This shift perfectly aligns the specific amino acid residues of the catalytic site against the substrate's chemical bonds, inducing the enzyme to perform its catalytic function (breaking or forming bonds).


Why other options are incorrect:

Meiosis is cellular division. Metabolism is a broad term for all cellular reactions. 'Analytic function' is a made-up term in this context. The direct result of the conformational shift is catalysis.

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