Question

Which of the following statement is correct regarding enzyme inhibition?

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

Answer 1

Answer: (B)

Competitive inhibition is a reversible inhibition where inhibitor competes with normal substrate for the active site and binds with it. This type of inhibition is due to the substrate analogue.