LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

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

HP 13

SECOND SEMESTER – APRIL 2007

ML 2801 – HUMAN PATHOGENS

 

 

 

Date & Time: 17/04/2007 / 1:00 – 4:00         Dept. No.                                                       Max. : 100 Marks

 

 

 

Section A                                (10 x 2 = 20 Marks)

 

Answer all the Questions:

 

1. Which test can differentiate Salmonella from Shigella?
2. Enumerate the different pigments produced by Pseudomonas.
3. Define virus and enumerate their characteristic properties.
4. Name any four oncogenic viruses.
5. Differentiate bacteria from fungi.
6. What are mycotoxins?
7. Enumerate the lesions produced in amoebiasis.
8. Name the species of Leishmania pathogenic to man.
9. What is ascaris pneumonia?
10. Name any four parasites whose mode of infection is by oral route.

 

Section B                                (4 x 10 = 40 Marks)

 

Answer any four of the following:

 

11. Discuss briefly the clinical conditions caused by Salmonella.
12. Discuss the lytic cycle of bacteriophage.
13. Enumerate the fungi responsible for cutaneous mycosis and explain their pathogenesis.
14. Enumerate the difference between Plasmodium vivax and Plasmodium falciparum.
15. Discuss briefly the life cycle of Taenia solium.
16. Explain the role of various toxins and enzymes produced by Staphylococcus aureus

 

Section C                                ( 2 x 20 = 40 Marks)

 

Answer any two of the following:

 

17. Discuss in detail about the causative agent, pathogenesis and diagnosis of Diptheria
18. Write short notes on
19. a) Mumps b)  Rubella    c)  Small pox   d)  Measles
20. Explain in detail the role of Candida in causing infection to man.
21. Write an essay on filariasis.

 

 

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