SECTION - A
I. i) Very short answer type questions.
ii) Answer ALL the questions.
iii) Each question carries TWO marks. 10 × 2 = 20
1. Define metabolism. What is the difference between anabolism and catabolism?
2. Name two diseases caused by Mycoplasmas.
3. Who discovered the cell and what was the book written by him?
4. Why certain fruits are called false fruits? Name two examples of
plants having false fruits.
5. Name a plant that has single fruit developing from the entire
inflorescence. What is such a fruit called?
6. What is geocarpy? Name the plant which exhibits this phenomenon.
7. What are gas vacuoles? State their functions.
8. What are primary and secondary metabolites? Give examples.
9. Given that the average duplication time of E.coli is
20 minutes. How much time will two E. coli cells take to become 32 cells?
10. Hydrophytes show reduced xylem. Why?
SECTION - B
II. i) Short answer type questions.
ii) Answer any SIX questions.
iii) Each question carries FOUR marks. 6 ×4 = 24
11. Write the role of Fungi in our daily life.
12. Explain in brief the scope of Botany in relation to agriculture,
horticulture and medicine.
13. Discuss the various types of pollen tube entry into ovary with the
help of diagrams.
14. Give economic importance of plants belonging to Fabaceae.
15. Describe the cell organelle which contains chlorophyll pigments.
16. Schematically represent primary, secondary and tertiary structures
of hypothetical polymer using protein as an example.
17. What is the difference between lenticels and stomata?
18. Write brief account on classification of xerophytes.
SECTION - C
III. i) Long answer type questions.
ii) Answer any TWO questions.
iii) Each question carries EIGHT marks. 2 × 8 = 16
19. Explain how stem is modified variously to perform different functions.
20. Describe the post-fertilization changes in a flower.
21. Describe the internal structure of dorsiventral leaf with the help
of labeled diagram.
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