(a)[1]
Fig. 1.1 shows a plan diagram of a stem section. Use a label line and the letter X on Fig. 1.1 to show one place where xylem tissue is found in the stem.
(b)[3]
Explain how hydrogen bonding between water molecules helps water to move upward in xylem vessels from the stem to the leaves.
(c(i))[3]
Describe and explain the pattern of water movement shown in Fig. 1.2.
(c(ii))[3]
Fig. 1.2 shows only some of the structures that can be seen with a light microscope. List the features visible at high power that let a parenchyma cell be recognised as a plant cell rather than an animal cell.