(cid:44)(cid:1)(cid:1)(cid:1)(cid:1)(cid:9)(cid:1)(cid:1)(cid:1)(cid:1)(cid:1)(cid:1)(cid:1)(cid:4)(cid:44)
(b) Fig. 1.2 shows an action potential in a rat neurone and Fig. 1.3 shows an action potential in a
snail neurone.
rat snail
Question
Biology
CAIE2023
(a) Explain how a synapse functions. [9]
(b) Describe the role of glucagon in regulating blood glucose. [6]
[Total: 15]