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Scrat [10]
4 years ago
10

Given these events:

Biology
1 answer:
masya89 [10]4 years ago
7 0

Answer:

b. 3,2,4,5,1

Explanation:

3. The action potential induces an electrochemical process that causes release of the acetylcholine.

2. Release of acetycholine into synaptic cleft is down an electrochemical gradient, i.e through diffusion and not requiring energy input.

4. Acetylcholine then binds and activates ligand-gated ion channels of the muscle fiber to open up.

5. Sodium ions will flow into the muscle generation an action potential that will culminate into contractions.

1. The enzyme acetylcholinesterase will breakdown any acetycholine not needed in the synaptic cleft.

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