Download NTRUHS 2nd Year MBBS 2025 January Microbiology Paper I MCQs Question Paper

Dr NTR UNIVERSITY OF HEALTH SCIENCES : VIJAYAWADA - 8

MBBS DEGREE EXAMINATION - JANUARY, 2025

SECOND M.B.B.S. EXAMINATION

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MICROBIOLOGY-PAPER-I (SET-C)

(Multiple Choice Questions)

Time: 20 Minutes

Max Marks: 20

SECTION-I (MCQs - 20 MARKS) 1X2=20

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1. Oxidase positive bacterium is
   1. Escherichia coli
   2. Klebsiella pneumoniae
   3. Proteus mirabilis
   4. Pseudomonas aeruginosa

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2. Gram positive branching, filamentous bacilli are seen in
   1. Actinomyces israelii
   2. Bacillus anthracis
   3. Clostridium perfringens
   4. Listeria monocytogenes

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3. Viral inclusion bodies with Owl's eye appearance are seen in
   1. Rabies virus
   2. Herpes simplex virus
   3. Cytomegalovirus
   4. Yellow fever virus

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4. One of the following medium is used to isolate Mycobacterium tuberculosis
   1. Lowenstein Jensen medium
   2. Thiosulfate citrate bile salt sucrose agar medium
   3. Deoxycholatecitrate agar medium
   4. Potassium tellurite agar medium

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5. False about type 1 hypersensitivity reaction is
   1. Result of excess formation of immune complexes
   2. Mediated by IgE antibody
   3. Mast cell degranulation
   4. Manifests in minutes

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6. The secretory Antibody that mediates mucosal immunity
   1. IgG
   2. IgA
   3. IgM
   4. IgD

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7. Graft rejection due to preformed antibodies is seen in
   1. Chronic rejection
   2. Subacute rejection
   3. Acute rejection
   4. Hyperacute rejection

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8. Neisseria and other pyogenic infections are associated with
   1. Disorders of Complement
   2. Humoral immunodeficiency
   3. Cellular immunodeficiency
   4. Disorders of phagocytosis

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9. Flea borne typhus fever is caused by
   1. Rickettsia prowazekii
   2. Rickettsia typhi
   3. Rickettsia rickettsii
   4. Rickettsia conorii

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10. One of the following is not a high level disinfectant
    1. Chlorhexidine gluconate
    2. Gluteraldehyde
    3. Hydrogen peroxide
    4. Peracetic acid

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11. Which of the following diagnostic method can detect HIV infection at the earliest during the window period
    1. Viral RNA detection
    2. Antibody detection
    3. P24 antigen detection
    4. Viral culture

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12. Antibodies to the following antigen are useful in identifying typhoid carrier
    1. Surface envelope Vi antigen
    2. Flagellar H antigen
    3. Somatic O antigen
    4. Capsular antigen

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13. One of the following is not associated with pseudomembranous colitis
    1. Disruption of normal colonic flora is not seen
    2. Prolonged hospital stay
    3. Prolonged antimicrobial use
    4. Pathogenesis is toxin mediated

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14. One of the following feature is not commonly associated with Chikungunya fever
    1. Acute onset
    2. Polyarthritis
    3. Thrombocytopenia
    4. Aedes aegypti

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15. Chronic, persistent, profuse, watery diarrhea in AIDS patients is commonly seen in
    1. Intestinal amoebiasis
    2. Ascariasis
    3. Cryptosporidiosis
    4. Giardiasis

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16. Food poisoning that results within few hours of consumption of the food due to preformed toxins in the food is usually associated with
    1. Vibrio cholerae
    2. Clostridium perfringens
    3. Campylobacter jejuni
    4. Staphylococcus aureus

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17. Neurons are the site of latency with infection by
    1. Epstein-Barr virus
    2. Herpes simplex virus
    3. Cytomegalovirus
    4. Human herpes virus

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18. One of the following is not a feature of Ascariasis
    1. Filariform larva is the infective form
    2. Allergic manifestations
    3. Intestinal obstruction
    4. Growth retardation

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19. One of the following is not associated with Nocardiosis
    1. Penicillin is the drug of choice
    2. Gram positive branching filamentous bacilli
    3. Kinyoun stain is useful in diagnosis
    4. Common in immunocompromised individuals

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20. Excellent prognosis, high secondary attack rate, no oncogenic potential are associated with infection by
    1. Hepatitis A virus
    2. Hepatitis E virus
    3. Hepatitis B virus
    4. Hepatitis C virus

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