(Pages: 1667
P.T.O.
MAR IVANIOS COLLEGE (AUTONOMOUS)
THIRUVANANTHAPURAM
Reg. No. :.………………… Name :.…………………
Third Semester Career Related B.Sc. Degree Examination, November 2016
First Degree Programme under CBCSS Core Course III: (for Botany and Biotechnology)
AUBB341: Angiosperm Anatomy and Reproductive Botany
for 2014 Admissions Improvement Only
Time: 3 Hours Max. Marks 80
SECTION A
Answer ALL the following each in a word or as short notes.
1. What is a leaf trace
2. What is pollinium
3. Calcium and magnesium pectate are mainly present in which region of the plant cell wall
4. Which structure is considered as the megasporangium in angiosperms
5. Name the cytoplasmic connections between adjacent cells.
6. Mention the ploidy level of angiosperm endosperm
7. Cite an example for secondary meristem.
8. Define melittopalynology.
9. Differentiate between endarch and exarch xylem.
10. Companion cells are seen in which tissue
(10 1 10 Marks)
SECTION B
Answer any EIGHT questions, not exceeding one paragraph.
11. What are secretory tissues Cite an example.
12. Write a note on any two nonliving inclusions in a plant cell.
13. Differentiate between fascicular and interfascicular cambiums.
1667
2
14. What is a simple tissue Mention two examples.
15. Which are the different layers of periderm? Name the periderm layer which is meristemsatic.
16. Enumerate the major differences between ring porous and diffuse porous woods.
17. Explain the reason for the formation of annual rings.
18. Write a note on the structure of the wall of angiosperm anther.
19. What is triple fusion Why it is called so
20. Highlight the applications of palynology.
21. Differentiate between porogamy and chalazogamy.
22. What are lenticels Explain their function.
2 16 Marks)
SECTION C
Short essay type Answer any SIX questions.
23. Write a note on the structure of angiosperm pollen
24. Explain the process of microsporogenesis in angiosperms.
25. Differentiate between the primary structure of monocot and dicot roots.
26. With the help of suitable diagrams explain the various components of xylem tissue.
27. Elaborate on 'Tunica Corpus theroy'
28. What are tyloses How they are formed
29. With the help of labeled diagrams explain the various types of vascular bundles seen in plants.
30. Explain the development of nuclear endosperm. How it differs from the formation of cellular endosperm
31. With the help of a labeled diagram explain the structure of a dorsiventral leaf.
4 24 Marks)
SECTION D
Long essay type Answer any TWO questions.
32. With the help of a labeled diagram explain the primary structure of a typical dicot stem. How it differs from that of a monocot stem
33. Explain the process of secondary thickening in Bignonia stem.
34. Describe the Polygonum type of embryo sac development.
35. Write notes on cell wall thickening. Explain the structure of simple and bordered pits.
15 30 Marks)