Practical Examination.

1. Identify the submitted ferns and fern allies.

2. Mention the plant or plant structure illustrated by the submitted numbered preparations.

PRELIMINARY HONORS.

BOTANY.

Physiology.

1. When, where and how is starch formed in a plant, and how can you experimentally demonstrate these facts?

2. What food materials does a plant take from the soil? How does it take them, and for what purpose?

3. Trace water into, through, and out of a tree, noting the forces, paths, and purposes served.

4. Describe the life history and the peculiar arrangements for nutrition found in (1) a flowering parasite, (2) a flowerless parasite, (3) a saprophyte.

5. Give a note on mycorhiza, epiphytic and endophy

tic.

6. Describe the pumpkin seed, and the germination and emergence of a pumpkin seedling, noting the use of the food store.

7. Discuss as fully as possible the respiration and assimilation processes in plants.

8. Describe and explain plant motility as shown by movements of nutation, sleeping positions, wilting, and the folding of the leaves of sensitive plants.

FINAL HONOURS.

BOTANY.

Plant Histology.

1. Where in a plant are the following named tissues found, and what is the structure and the purpose of each: bast, cambium, pitted vessels, sieve tubes?

2. Where have you found intercellular spaces in plants, and what is their purpose? Explain fully.

3. What parts of what plants would you use to demonstrate each of the following:-water storage, protected stomata, glandular hairs, and protective leaf folding? Show how each of these anatomical modifications serves the purpose of the plant.

4. Discuss killing and fixing agents, noting their importance and the advantages of each.

5. What materials may well be mounted in glycerin? Describe the process and state its advantages.

6. Outline the paraffin method of handling histological material, noting its difficulties.

7. What are the advantages and the disadvantages of balsam as a mounting medium?