1. Openings on the stem through which transpiration occurs.

2. The process by which the intact plant loses water in the form of droplets.

3. An instrument used to find the rate of transpiration.

4. A plant in which the stomata are sunken.

5. The apparatus to record the rate of transpiration in a cut shoot.

6. Any two parts of a leaf which allow transpiration.

7. The structure in a leaf that allows guttation.

8. Loss of water as droplets from the margins of certain leaves.

Answers:

1. Lenticels

2. Guttation

3. Potometer

4. Nerium

5. Ganong’s photometer

6. Stomata and cuticle

7. Hydathodes

8. Guttation