LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

TS 16

B.Sc.  DEGREE EXAMINATION –ZOOLOGY

FIFTH SEMESTER – APRIL 2007

ZO 5401 – IMMUNOLOGY

 

 

Date & Time: 04/05/2007 / 1:00 – 4:00          Dept. No.                                                     Max. : 100 Marks

 

 

 

PART – A                                          2 x 10 = 20  Marks

I           Answer ALL the questions.

1. What is meant by peyers patches?
2. Explain a lymph node
3. Comment on bursa of fabricius.
4. What are macrophages.
5. What are natural killer cells.
6. Comment on spleen.
7. What is diptheria?
8. What are cyto kins?
9. Differentiate between innate and acquired immunity.
10. What are vaccines?

 

 

PART – B                                    4 x 10 = 40 Marks

II         Answer any FOUR of the following

11. Differentiate B and T lymphocytes.
12. Explain the different lymphatic organs of man.
13. Write a note on differentiation of stem cells into different components.

14   What are the antigens of micro organisms.

15   Write a note on monoclonal antibodies.

16   Explain Jerne-plague experiment that explains cell adherence and immunity,

 

 

PART – C                                    2 x 20 = 40 Marks

III        Answer any TWO of the following

 

17. Write an essay on AIDS and its present status of vaccine to control it.
18. Write an essay on classification of immunoglobulins.
19. What is hyper sensitivity and its reactions..

20..Write an essay on immunity against bacterial infections in man.

 

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