(a)[3]
Identify the organelles $A$, $B$ and $C$.
(b)[1]
State two cell structures that may be present in animal cells but are absent from plant leaf cells.
(c)[4]
Water is carried up the stem and into the spinach leaf in the xylem. After leaving the xylem, it travels by the apoplast and symplast pathways until it reaches the cells shown in Fig. 2.1. Outline how the apoplast and symplast pathways differ after the water has left the xylem.
(d(i))[2]
State two functions of water in the leaf cell.
(d(ii))[1]
State one function of magnesium ions in the leaf cell.