Q. Which of the following statements regarding enzyme inhibition is correct ?
A) Non-competitive inhibition of an enzyme can be overcome by adding large amount of substrate
B) Competitive inhibition is seen when a substrate competes with an enzyme for binding to an inhibitor protein
C) Competitive inhibition is seen when the substrate and the inhibitor compete
D) Non-competitive inhibitors often bind to the enzyme irreversibly
Explanation
[Solution from source] In competitive inhibition, a substrate-like inhibitor competes with the substrate for the enzyme's active site (for example malonate against succinate). Adding more substrate overcomes competitive inhibition, not non-competitive inhibition. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.