Annamalai University 2008-1st Year B.Sc Botany " 550 ZOOLOGY " ( - III ) ( PART - III ) ( GROUP - B : ANCILLARY ) ( ) 5262 - Question Paper
SECTION-C (3x15 = 45)
4
Answer any THREE questions.
Each answer should not exceed 1,500 words.
All questions carry equal marks.
21. Describe the structure and life cycle of entamoeba histolytica.
22. Describe the alimentary canal and feeding mechanism of amphioxus.
23. Explain the structure and functions of the nucleolus. How is it formed ?
24. Write an essay on Darwinism.
25. Describe the role of temperature as limiting factor.
Name of the Candidate :
5 2 6 2 B.Sc. DEGREE EXAMINATION, 2008
(BOTANY)
(FIRST YEAR)
(GROUP - B : ANCILLARY)
(PART - III)
(PAPER - III)
December ] [ Time : 3 Hours
Maximum : 100 Marks
SECTION - A (10 x 2 = 20)
Answer any TEN questions.
Each answer should not exceed FIFTY words. All questions carry equal marks.
Write short notes on :
1. Medusa.
2. Tube feet.
3. Kebers organ.
4. Kollikerts pit.
5. Contours.
6. Cristal.
7. GERL region.
8. Nuclear pore.
9. Archentron.
10. Villi.
11. Neuron.
12. Circadian rhythm.
13. Green house effect.
14. Test cross.
15. Homology.
Answer any FIVE questions.
Each answer should not exceed 300 words. All questions carry equal marks.
16. (a) Give an account of the various types of
zoids found on the obelia colony.
(b) Describe the perihaemal and haemal system of starfish.
17. (a) Explain the arterial system of columba.
(OR)
(b) Give an account on affinities of amphioxus.
18. (a) Compare the characteristics of prokaryotic
and eukaryotic cells.
(OR)
(b) Describe the bio-genesis of mitochodria.
19. (a) What is cortical reaction ? Discuss various
events of cortical reaction.
(OR)
(b) Explain the structure and functions of autonomic nervous system.
20. (a) Explain inborn errors of metabolism in
man.
(OR)
(b) Explain the theory of natural selection.
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