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P.T.O.
MAR IVANIOS COLLEGE (AUTONOMOUS)
THIRUVANANTHAPURAM
Reg. No.:.………………… Name:...…………………
First Semester B.Sc. Degree Examination, November 2017
First Degree Programme under CBCSS
Core Course: Botany I
AUBO141: Angiosperm Anatomy, Reproductive Botany and Palynology
Time: 3 Hours Max. Marks: 80
SECTION A
Write short notes on ALL the following.
1. Calyptrogen
2. Endothecium
3. Lenticels
4. Cystolith
5. Colporate pollen grains
6. Tyloses
7. Filiform apparatus
8. Casparian thickening
9. Dendrochronology
10. What are laticiferous tissues Give an example.
(10 x 1 10 Marks)
SECTION B
Answer any EIGHT questions, not exceeding one paragraph.
11. Differentiate sap wood and heart wood.
12. Differentiate simple pit and bordered pit.
13. Explain the organization of stem apex based on Tunica Corpus theory.
14. Differentiate anomocytic stomata from anisocytic stomata.
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15. Differentiate schizogenous and lysigenous cavities.
16. What are plasmodesmata Explain its function.
17. What is pollenkitt Mention its function.
18. Describe the significance of double fertilization.
19. Differentiate monocot embryo from dicot embryo.
20. What are passage cells Mention their importance in plants.
21. Mention the differences between tracheids and vessels.
22. 'The apical meristem in root is not terminal'. Justify the statement.
x 2 16 Marks)
SECTION C
Short essay type Answer any SIX questions.
23. Define endosperm. What are the three types of endoperm formations in plants
24. Explain the different types of vascular arrangements.
25. Define tapetum. How is it classified Mention its function.
26. Comment on the role of palynology in taxonomy.
27. Compare the leaf anatomy of monocots and dicots.
28. What are meristematic tissues How are they classified
29. What are pits Describe the two different types of pits present in the cells of plants.
30. Give an account on reserve food materials present in plants.
31. What are the different types of parenchyma tissues present in plants Mention their function.
x 4 24 Marks)
SECTION D
Long essay type Answer any Two questions.
32. What are complex tissues How are they classified
33. Compare anomalous secondary thickening in the stems of Dracaena and Bignonia.
34. Describe secondary thickening in dicot root. Explain how the periderm formation in roots differ from that of a dicot stem
35. Describe megasporogenesis and explain the development of a typical monosporic embryosac.
x 15 30 Marks)