Which of the following chemicals paralyzes skeletal muscle by binding to the acetylcholine receptor sites?
A)black widow spider venom
B)curare
C)organophosphates
D)insecticide
E)local anesthetics

Question

Quizplus · Accepted Answer

Curare is a plant-derived alkaloid that competes with acetylcholine for binding to the receptor sites on the motor end plate of skeletal muscles, thereby preventing muscle contraction and causing paralysis. Other choices, such as black widow spider venom, organophosphates, insecticides, and local anesthetics, may also cause skeletal muscle paralysis, but through different pathways or mechanisms.

Which of the Following Chemicals Paralyzes Skeletal Muscle by Binding