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

Control and coordination in mammals — practice question

Fig. 1.1 depicts a neurone making three synapses with nearby neurones.

(a)[3]

Name A, B and C.

(b)[3]

Outline the role of structure A in synaptic transmission.

(c)[2]

The drug nicotine has a structure similar to acetylcholine. Suggest the effects on brain neurones of inhaling nicotine from a cigarette.

Worked solution & mark scheme

This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The structure marked A is the mitochondrion” …