1. Describe with the aid of a drawing the various structures seen by means of a pocket lens in a section across the middle region of a grain of wheat.

2. How would you measure the rate of transpiration of water from a small plant or a leafy stem?

3. How can it be shown that the root responds to external influences of moisture, light and gravity?

4. Give a brief account of the function of the green leaf in the nutrition of plants.

5. Compare by drawings the leaves of broad bean and garden pea. Then discuss the means by which the two plants obtain mechanical support.

6. When the bulb of a thermometer is placed in a jar of soaked and germinating seeds, what temperature change is observed? Explain the cause of this.

7. Describe experiments which show in what respects the air is affected in composition by passing through the lungs.

8. Describe with the help of drawings the structure of the flowers of the hazel or willow and show how they are adapted for cross-pollination.

9. What is meant by root pressure, and how would you demonstrate it? Illustrate your answer by drawings.

10. What are the conditions of the soil which make it a suitable medium for healthy root-action and vigorous plant growth? Conversely under what conditions of soil would the plant fail to thrive or die?