All of the following are examples of noncompetitive inhibitors EXCEPT
A) arsenic.
B) nerve gas.
C) mercury.
D) lead.

Question

Quizplus · Accepted Answer

Noncompetitive inhibitors bind to an enzyme at a site other than the active site, altering the enzyme's activity without directly competing with the substrate. Arsenic, mercury, and lead act as noncompetitive inhibitors by binding to different enzyme sites, disrupting their function. Nerve gas, however, typically acts as a competitive inhibitor for acetylcholinesterase, directly competing with the neurotransmitter acetylcholine for the active site, which is why it is the exception here.

All of the Following Are Examples of Noncompetitive Inhibitors EXCEPT