Download RUHS MBBS 2nd Year 2015 January Microbiology Paper I Question Paper

RUHS Second MBBS (Main) Examination

Microbiology Paper -I

Date: January 2015 Time: 3 hours Max Marks: 40

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Instructions:

Question 1 in Section A and Question 5 in Section B are Compulsory.

Attempt any two questions from rest of the questions in each section.

(Use separate answer sheet for each section)

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SECTION - A

1. Describe the morphology, pathogenicity, and laboratory diagnosis of Corynebacterium diphtheria. (10)
2. Write Short notes on the following:
   1. Principle of autoclave (A. 31)
   2. Differences between exotoxin and endotoxin (A. 75)

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3. Describe briefly (2 x 2 1/2 = 5)
   1. Lab diagnosis of enteric fever (A. 296, 681)
   2. Biological effects of complement (A. 123-124)
4. Describe briefly (2 x 2)
   1. ß -lactam antibiotics
   2. Enriched medium (A. 40)

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   3. Secretory immunoglobulin
   4. Principle of precipitation (A.104)
   5. Organisms causing non-gonococcal urethritis (A. 234)

SECTION - B

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5. Enumerate various hypersensitivity reactions. Describe the mechanism of anaphylaxis with suitable examples (A.163) (10)
6. Write Short notes on the following: (2 1/2 x 2 = 5)
   1. Plasmids (A. 18)
   2. ZN smear evaluation of sputum
7. Describe differences between the following; (2 1/2 x 2 = 5)
   1. Cutaneous anthrax

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   2. Escherichia coli associated diarrhoea (A. 277)
8. Describe differences between the following; (1 x 5 = 5)
   1. Lepromin test (A. 367)
   2. Heterophile antibodies (A. 89)
   3. Swarming (A. 282)

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   4. ASO test
   5. Castaneda medium

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