(a(i))[2]
Name the parts marked A and B.
(a(ii))[1]
State one function of a cell membrane.
(a(iii))[1]
State how the shape of the cells shown in Fig. 1.1 is different from the shape of a palisade mesophyll cell in a leaf.
(b)[1]
Suggest why the inner membrane of mitochondria is folded.
(c)[4]
Explain why the average numbers of mitochondria differ between the cells shown in Table 1.1.