(a(i))[3]
Draw a diagram in the space below to show the mitosis stage that comes after the one in Fig. 5.1.
(a(ii))[2]
Describe what the spindle fibres do during mitosis.
(b(i))[3]
Outline the changes that occur as cell X develops into a mature red blood cell.
(b(ii))[1]
Suggest what might happen to cell Y.
(c(i))[1]
Complete Table 5.1 by calculating the percentage rise in haemoglobin concentration. The mean concentration of haemoglobin in the blood is measured in $\text{g }100\,\text{cm}^{-3}$.
(c(ii))[4]
Explain why it is necessary for the athletes to increase the concentration of haemoglobin in their blood when acclimatising to high altitude.