Acetylcholine Is a Neurotransmitter That Binds to Receptors on Skeletal

question 21

Multiple Choice

Acetylcholine is a neurotransmitter that binds to receptors on skeletal muscle cells. The receptor-signal complex brings about a series of events that result in contraction of skeletal muscle. Venom from black widow spiders causes an explosive release of acetylcholine. What would that do to its victims?

• A) The victim's muscles would be unable to contract.
• B) The victim's muscles would be unable to relax.
• C) The victim's cell receptors would no longer be able to bind regulatory hormones.
• D) The victim's cell receptors would be able to bind regulatory hormones but at a rate greatly exceeding normal rates.

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