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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
Complementary Course: Botany I (for Zoology)
AUBO131: Microtechnique, Angiosperm Anatomy and Reproductive Botany
Time: 3 Hours Max. Marks: 80
SECTION A
Write short notes on ALL the following.
1. Medullary ray.
2. Collenchyma.
3. Microsporogenesis.
4. Double staining.
5. Antipodal cell.
6. Mordant.
7. Subsidiary cell.
8. Polyembryony.
9. Sap wood.
10. Double fertilization.
(10 x 1 10 Marks)
SECTION B
Answer any EIGHT questions, not exceeding one paragraph.
11. Differentiate Ring Porous wood from Diffuse Porous wood.
12. Distinguish between a Bicollateral and Collateral Vascular bundle.
13. Bring out the structure and a function of a Guard cell.
14. What is Casparian strip Mention its functions.
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15. Discuss the role of Quiscent centre.
16. Explain Parthenocarpy.
17. Elucidate the structure of water stomata.
18. Define a closed vascular bundle with an example.
19. Mention the significance of annual rings.
20. Distinguish between Periblem and Periderm.
21. Explain Nucellus.
22. Illustrate and explain the structure of a pollen grain.
x 2 16 Marks)
SECTION C
Short essay type Answer any SIX questions.
23. What are Sclereids Explain any three types of Sclereids.
24. Explain with illustration the structure of a mature monosporic Embryo sac.
25. Elucidate the function of procambium. What are its derivatives
26. Bring out the difference between tissue and tissue system.
27. What are companion cells Distinguish them from complementary cells.
28. Explain natural stains with examples.
29. Explain Tunica corpus theory.
30. Discuss Laticifers.
31. Briefly explain killing and fixing in Microtechnique.
x 4 24 Marks)
SECTION D
Long essay type Answer any TWO questions.
32. Explain the primary structure of a Dicot stem and bring out its normal secondary thickening.
33. Illustrate the cross section of a Mature anther and write a note on structure and function of wall layers.
34. Elucidate the structure of tracheary elements.
35. Compare the internal structure of a Dicot leaf with that of a Monocot leaf.
x 15 30 Marks)