State the letter in Fig. 5.1 that indicates where water evaporates from during transpiration.
State the letter in Fig. 5.1 that indicates where water vapour leaves the leaf during transpiration.
Water is transported to the leaf through tube A. State the name of the vessels in a plant stem that tube A stands for.
From the information in Table 5.1, calculate the rate at which the air bubble moves when the environmental temperature is 30 ^{\circ}C. Give your answer to two decimal places.
Describe the effect that an increase in environmental temperature has on the rate of transpiration shown in Table 5.1.
State the name of the cells through which water enters a plant.
State the name of the process by which water enters plant cells.