LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

M.Sc. DEGREE EXAMINATION – MEDICAL LAB. TECH.

BV 07

SECOND SEMESTER – April 2009

ML 2811 / 2809 – IMMUNOLOGY

 

 

 

Date & Time: 22/04/2009 / 1:00 – 4:00       Dept. No.                                                       Max. : 100 Marks

 

 

SECTION  A

Answer ALL the questions in one or two sentences:                     (10 X 2 = 20 marks)

1. Mention the contributions of Louis Pasteur.
2. What is vaccination?
3. What are heterophile antigens?
4. Which molecules are involved in processing and presentation of antigens?
5. Define the term cytokines.
6. What is an opsonin?
7. Mention the four types of grafts.
8. What is meant by histocompatibility?
9. What is MALT?
10. Define antigenic drift.

SECTION  B

Answer any FOUR of the following:                                              (4 X 10 = 40 marks)

11. Explain the biological functions of complement components.
12. Elaborate immunological functions of lymph node and spleen.
13. Write notes on the structure and biological functions of IgG and IgA.
14. What is anaphylaxis? Describe its mechanism and symptoms.
15. What is allograft rejection? Explain.
16. Give an outline of EMIT.

SECTION  C

Answer any TWO of the following:                                                (2 X 20 = 40 marks)

17. Give an account on different types of vaccines used in the prevention of various human diseases.
18. Explain (a) Coombs test (b) Cold agglutination test (C) Paul Bunnel test and (d) Latex agglutination reaction.
19. Write an essay on innate immunity.
20. What is HLA? Describe its structure and function.

 

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