Download ABVMU MBBS 2nd Year 2025 April Microbiology Paper I Set B MCQs Question Paper

ATAL BIHARI VAJPAYEE MEDICAL UNIVERSITY, UTTAR PRADESH
MBBS DEGREE - IInd PROFESSIONAL - SUPPLEMENTARY EXAMINATION - APRIL 2025
MICROBIOLOGY - PAPER - I
SECTION A - Multiple Choice Questions (MCQs)
PAPER CODE : 2521130006

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SET : B
Note: Choose one correct answer in the OMR sheet provided. No overwriting should be done.
Time: 20 Minutes
(20 x 1 = 20 MARKS)
1. When is World Antimicrobial Awareness Week (WAAW) celebrated?

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a) 1?5 July
b) 4?10 October
c) 23?30 December
d) 16?22 November
2. Which of the following is a commensal in human intestines?

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a) Shigella dysenteriae
b) Salmonella typhi
c) Vibrio cholerae
d) Escherichia coli
3. Most likely mode of transmission in a child with anti-HAV IgM positivity:

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a) Sexual route
b) Feco-oral route
c) Direct contact
d) Parenteral route
4. Which of the following is a high level disinfectant?

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a) Lysol
b) Benzalkonium chloride
c) 70% ethyl alcohol
d) Glutaraldehyde
5. Mycoplasma are bacterial cells that:

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a) Have a rigid cell wall
b) Fail to reproduce on artificial media
c) Stain well with Gram stain
d) Are resistant to penicillin
6. Schizonts are not seen in peripheral blood smear of:

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a) Plasmodium falciparum
b) Plasmodium vivax
c) Plasmodium ovale
d) Plasmodium malariae

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7. Which of the following is NOT true about Taq DNA polymerase?

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a) Acts as exonuclease
b) Functions at high temperatures
c) Requires buffer
d) Adds nucleotides
8. Autoclaving and micro-oventing are done for which type of medical waste?

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a) Recyclable contaminated waste
b) Human anatomical waste
c) Microbiological waste
d) Cytotoxic drugs
9. The reaction of soluble antigen with antibody is known as:

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a) Opsonization
b) Agglutination
c) Neutralization
d) Precipitation
10. Which of the following is a true statement regarding Inactivated Polio Vaccine (IPV)?

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a) It is made up of a single strain
b) IPV provides herd immunity
c) It should not be given along with OPV
d) It is available as IM and ID preparations
11. Biosafety cabinet Class II is designed for:

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a) Environmental, personal & product
b) Environmental and personal
c) Product and personnel
d) Personal
12. HIV-positive patient with watery diarrhea and acid-fast cysts (8?12 ?m):

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a) Entamoeba histolytica
b) Escherichia coli
c) Cyclospora
d) Cryptosporidium
13. Which of the following is Type IV hypersensitivity reaction?

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a) Arthus reaction
b) Serum sickness
c) Tuberculin reaction
d) Schaumann reaction
14. Which immunoglobulin activates the classical complement pathway?

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a) IgA
b) IgD
c) IgE
d) IgM

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15. Viral infections with double-stranded RNA virus in a child is caused by:

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a) Rotavirus
b) Influenza virus
c) Measles virus
d) Reovirus
16. Which of the following media is used as transport medium for vibrios?

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a) Nutrient broth
b) Selenite F broth
c) Venkataraman?Ramakrishnan
d) Tetrathionate broth
17. Chemical nature of endotoxin is:

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a) Protein
b) Lipopolysaccharide
c) Carbohydrates
d) None
18. An example of a simple stain is:

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a) Ziehl?Neelsen stain
b) Gram's stain
c) Giemsa stain
d) Methylene blue stain
19. Agar agar used in media is:

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a) Meat extract
b) Nutritional
c) Factor X & V
d) Solidifying agent
20. Metachromatic granules are chemically composed of:

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a) Proteins
b) Lipids
c) Polymetaphosphates
d) Polysaccharides
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