(Pages 1618
P.T.O.
MAR IVANIOS COLLEGE (AUTONOMOUS)
THIRUVANANTHAPURAM
Reg. No. :.………………… Name :...………………….
First Semester B.Sc. Degree Examination, November 2016
First Degree Programme under CBCSS
Complementary Course: Botany I (for Zoology)
AUBO131.2e: Microtechnique, Angiosperm Anatomy and Reproductive Botany
Common for Regular 2016 Admn. and Improvement 2015 Admn.
Time: 3 Hours Max. Marks: 80
SECTION A
Write short notes on ALL the following.
1. Cambium
2. Carnoy's fluid
3. Synergids
4. Sclereids
5. Protoxylem lacuna
6. Ornithophily
7. Porogamy
8. Scutellum
9. Obturator
10. Ambhivasal vascular bundle.
(10 1 10 Marks)
SECTION B
Answer any EIGHT questions, not exceeding one paragraph.
11. Draw a labeled diagram of monocot leaf.
12. Give characteristics of insect pollinated flower.
13. Explain Histogen theory.
14. Define triple fusion. What does the product develop into
1618
2
15. Differentiate fascicular cambium from inter fascicular cambium.
16. Define heart wood and sap wood.
17. What is Pericycle
18. What is egg apparatus
19. What is killing and fixing
20. How will you identify dicot root from monocot root based on stelar anatomy
21. Structure of stomata in dicot and monocot leaf.
22. What is Tyloses
2 16 Marks)
SECTION C
Short essay type Answer any SIX questions.
23. With diagram describe the structure and development of male gametophyte.
24. Compare vascular cambium and cork cambium.
25. Explain the structure and functions of the wall layers of anther.
26. Write a brief note on stains.
27. Explain periderm formation in dicot stem.
28. Write a short note on bark ii) cork iii) Lenticel
29. Describe different types of vascular bundles.
30. Give an account of tapetum.
31. What are three types of endosperm formation found in plants Give an example of liquid endosperm.
4 24 Marks)
SECTION D
Long essay type Answer any TWO questions.
32. Describe mega sporogenesis and the development of embryo sacs in angiosperm.
33. Define the term meristem. Explain and classify different types of meristematic tissues.
34. With suitable diagram describe the normal type of secondary growth in Dicot stem.
35. Describe the abnormal secondary growth in Boerhavia stem and compare it with a normal Dicot stem you have studied.
15 30 Marks)