Acetylcholinesterase is an important enzyme in the nervous system.Acetylcholinesterase activity is blocked by the nerve agent sarin gas,which forms a covalent bond with a Ser in the active site of the enzyme.Sarin gas is a(n)
A) allosteric effector.
B) competitive inhibitor.
C) reversible inhibitor.
D) irreversible inhibitor.

Question

Quizplus · Accepted Answer

Sarin gas forms a covalent bond with the serine residue in the active site of acetylcholinesterase, irreversibly inhibiting the enzyme. Therefore, it is considered an irreversible inhibitor.

Acetylcholinesterase Is an Important Enzyme in the Nervous System