Chemistry Macromolecules / Biochemistry PMC 2021
PMDC Verified Question 33 of 47
The substances which reduce the activity of enzyme action are called ____?
A
Activators
B
Promotors
C
Reducers
D
Inhibitors
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: Inhibitors
Concept:

Enzyme activity can be modulated by various small molecules that bind to the enzyme.

Formula:

$$N/A$$

Solution:

  • Chemical substances that bind to an enzyme (either at the active site or an allosteric site) and subsequently decrease or halt its catalytic activity are termed inhibitors.
  • Inhibition can be competitive, non-competitive, or uncompetitive.


Why other options are incorrect:

Activators and promoters increase enzyme activity or gene expression, respectively. Reducers are chemical agents that donate electrons in redox reactions, not a term used specifically for reducing enzyme kinetics.

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