(a(i))[1]
Name the cell structures that allow water to pass from cell A to cell B without going through their cell walls.
(a(ii))[1]
Explain why water moves from cell B to cell C.
(a(iii))[1]
Name the pathway followed by water between cell A and cell C.
(b)[4]
Most of the water that reaches the leaf is transferred to the external atmosphere. Using Fig. 1.1, describe and explain the series of events that occur between point P and point Q.
(c)[3]
The actual diameter of cell D in Fig. 1.1 along the length X-Y is $25\,\mu\text{m}$. Calculate the magnification of the image. Write down the formula used for your calculation. Show your working.