(a)[2]
On Fig. 10.1, add label lines and letters to show: K - potassium ions A - ATP.
(b)[4]
Describe the sequence of events that takes place during an action potential.
(c)[4]
Table 10.1 gives the axon diameter, myelination and transmission speed of impulses of motor neurones for three animals: squid, cockroach and cat. Describe the results shown in Table 10.1 and suggest explanations for them.