The venom of a black widow spider acts as a(n) __________ by mimicking the effects of acetylcholine.
A) agonist
B) protagonist
C) antagonist
D) glial cell

Question

Quizplus · Accepted Answer

The venom of a black widow spider acts as an agonist by mimicking the effects of acetylcholine, a neurotransmitter involved in muscle contraction. An agonist is a chemical that binds to a receptor and activates it to produce a biological response similar to that of the natural ligand. In this case, the venom mimics the action of acetylcholine by binding to its receptors and causing muscle spasms, paralysis, and other symptoms.

The Venom of a Black Widow Spider Acts as A(n)