(a)[2]
Fig. 4.1 shows a palisade mesophyll cell. Identify and label the nucleus and a chloroplast on Fig. 4.1.
(b(i))[2]
Describe what has happened to the cell between Fig. 4.1 and Fig. 4.2.
(b(ii))[3]
Explain why the cell in Fig. 4.2 has changed.
(b(iii))[1]
Suggest how the cell in Fig. 4.2 could be treated so that it would return to its original appearance in Fig. 4.1.
(c(i))[1]
State the name of the tissue that carries water up the stem and into a leaf in a plant.
(c(ii))[3]
Identify and label, using the letter W, where the water transport tissue is in each of the root, the stem and the leaf, on Fig. 4.3.