Annamalai University 2008-1st Year B.Sc Botany - - - - III - Zoology - Question Paper

B.Sc. DEGREE EXAMINATION, 2008
( BOTANY )
( 1st YEAR )
( GROUP - B : ANCILLARY )
( PART - III )
( PAPER - III )
550. ZOOLOGY
December ] [ Time : three Hours
Maximum : 100 Marks
part - A (10 × two = 20)
ans any TEN ques..
every ans should not exceed FIFTY words.
All ques. carry equal marks.
Write short notes on :
1. Medusa.
2. Tube feet.
3. Keber's 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.
part - B (5 × seven = 35)
ans any 5 ques..
every ans should not exceed 300 words.
All ques. carry equal marks.
16. (a) provide an account of the different kinds of zoids obtained on the obelia colony.
(OR)
(b) define the perihaemal and haemal system of starfish.
17. (a) discuss the arterial system of columba.
(OR)
(b) provide an account on affinities of amphioxus.
18. (a) Compare the characteristics of prokaryotic and eukaryotic cells.
(OR)
(b) define the bio-genesis of mitochodria.
19. (a) What is cortical reaction ? explain different events of cortical reaction.
(OR)
(b) discuss the structure and functions of autonomic nervous system.
20. (a) discuss inborn errors of metabolism in man.
(OR)
(b) discuss the theory of natural selection.
part - C (3 × 15 = 45)
ans any 3 ques..
every ans should not exceed 1,500 words.
All ques. carry equal marks.
21. define the structure and life cycle of entamoeba histolytica.
22. define the alimentary canal and feeding mechanism of amphioxus.
23. discuss the structure and functions of the nucleolus. How is it formed ?
24. Write an essay on Darwinism.
25. define the role of temperature as limiting factor.

Earning:   Approval pending.