Biology 9700 · AS & A Level · Control and coordination in mammals

Control and coordination in mammals — practice question

(a)[4]

Explain the importance of the myelin sheath in action potential transmission.

(b)[5]

Acetylcholine is a neurotransmitter. Describe the sequence of events at a synapse that causes acetylcholine to be released.

Worked solution & mark scheme

This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Myelin acts as an insulator” …

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