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Title: Acetylcholine is a neurotransmitter that transmits a signal from a nerve cell to a muscle cell...? Post by: ilikepie1234 on Feb 6, 2013 Acetylcholine is a neurotransmitter that transmits a signal from a nerve cell to a muscle cell, causing the muscle to contract. How is the neurotransmitter inactivated so that the muscle can relax?
a. acid b. it diffuses away c. it is hydrolyzed by pepsin d. it is hydrolyzed by acetylcholinesterase e. it is replaced by succinylcholine Title: Acetylcholine is a neurotransmitter that transmits a signal from a nerve cell to a muscle cell...? Post by: riya3rg on Feb 6, 2013 The answer is "d", it is hyddrolyzed by acetylcholinesterase to produce choline + acetate. The acetate diffuses away, but the choline is taken back up by the nerve terminal that released it.
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