Mike asked in Science & MathematicsBiology · 10 years ago

What happens to acetylcholine (ACh) when it dissociates from its receptor?

A It is broken down by an enzyme.

B It simply diffuses away from the synaptic cleft.

C It is pumped back into the presynaptic neuron.

Thanks for your help!

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  • 10 years ago
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    All of the above. Acetylcholine esterase breaks it down at the synapse, it diffuses away, and some of it is recycled and taken back up by presynaptic cell.

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