Question

Which of the following statements regarding enzyme inhibition is correct ?

• A. Competitive inhibition is seen when a substrate competes with an enzyme for binding to an inhibitor protein
• B. Non-competitive inhibitors often bind to the enzyme irreversibly
• C. Competitive inhibition is seen when the substrate and the inhibitor compete for the active site on the enzyme
• D. Non-competitive inhibition of an enzyme can be overcome by adding large amount of substrate

Answer 1

The correct option is C Competitive inhibition is seen when the substrate and the inhibitor compete for the active site on the enzyme

Competitive inhibition is seen when the substrate and the inhibitor compete for the active site on the enzyme because a competitive inhibitor has a similar structure as that of a substrate, so it blocks the active site of an enzyme thereby reducing the production formation.

Hence, option C is correct.