(a(i))[1]
Sketch on Fig. 6.1 to indicate how the Bohr effect alters the oxygen dissociation curve.
(a(ii))[3]
Explain how an increase in $p\text{CO}_2$ causes the Bohr effect and state the advantage of this effect for the tissue.
(b)[4]
Carbon dioxide ($\text{CO}_2$) is carried across the cell surface membrane of the red blood cell by a different mechanism from that used for hydrogen carbonate ions ($\text{HCO}_3^-$). Name the different mechanisms of transport used for $\text{CO}_2$ and for $\text{HCO}_3^-$ and explain why they cross the membrane by different mechanisms. $\text{CO}_2$: $\text{HCO}_3^-$: Explanation: