Which one of the following statements regarding enzyme inhibition is correct

Options

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

Answer

B

Explanation

Competitive inhibition is a reversible inhibition where inhibitor competes with the normal substrate for the active site of the enzyme. A competitive inhibitor is
usually chemically similar to the normal substrate and therefore fits into the active site of an enzyme and binds with it.