microbiology MCQs – Page 16

Practise focused microbiology questions with marked answers for exam preparation and subject revision.

microbiology Mcqs
301. In T.B cell mediated immunity is by_______________?
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A. CD 4*

B. None of the above

C. B lymphocytes

D. CD 8*

302. Glasswares are sterilised by______________?
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A. Incineration

B. Hot air oven

C. Formaldehyde

D. Autoclaving

303. The mechanism of genetic transfer where a phage serves as a vehicle is_______________?
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A. Transduction

B. Conjugation

C. Translation

D. Lysogeny
304. Which component of the cell wall is responsible________________?
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A. Region II

B. Region III

C. Region I

D. Boivin antigen

305. The Ig found in exocrine secretions is_____________?
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A. IgG

B. IgM

C. IgD

D. IgA
306. An oxidase-positive, gram-negative rod which produces a bluish-green pigment has been grown in culture from a swab obtained from an infected burn wound. This organism is susceptible to gentamicin, ticarcillin and tobramicin, but resistant to all the other antibiotics which of the following organisms is it likely to be ?
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A. Proteus miribilis

B. Klebsiella pnemoniae

C. Pseudomonas aeruginosa

D. Escherichia coli

307. Immunoglobulins ar secreted by______________?
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A. Neutrophils

B. T-cells

C. Macrophages

D. Plasma cells
308. Physical sterilization was discovered by__________________?
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A. Alexander flemings

B. John Hunter

C. Robert Koch

D. Joeph Lister
309. Causative agents of Vincents angina_____________?
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A. Borrelia burgoloferi and lactobacillus

B. Borrelia recurrents and bateroides

C. Leptospira and Treponema pallidum

D. Borrelia vincenti and fusobacterium fusiformis
310. Which of the following is an enrichment medium________________?
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A. Selenite F Broth

B. Nutrient Broth

C. Blood agar

D. Mac Conkey agar

311. Steam under pressure in used in ________ sterilization?
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A. Pasteurization

B. hot air oven

C. Autoclave

D. Kochs sterilizer

312. Widal test is specific for____________?
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A. Plague

B. Pemhigoid

C. Typhoid

D. Leprosy

313. ASO (Antistreptolysin 0) test is uesd for the diagnosis of________________?
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A. Rheumatoid arthritis

B. Rickettsial fever

C. Typhoid fever

D. Rheumatie fever
314. One of the following is a zoonotic disease_____________?
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A. Bacillary dysentery

B. Typhoid

C. Cholera

D. Anthrax
315. Subacute bacterial endocarditis is caused by_____________?
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A. Haemolytic streptococci

B. Nisseria

C. Streptococcus viridans

D. Staphylococcus aureus

316. Borrelia vincenti is always associated with______________?
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A. Spirochaetes

B. Treponema vincenti

C. Fusiform bacilli

D. None of the above

317. Rideal Walker test is used to determine the efficiency of the_____________?
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A. Antibiotics

B. Dry heat sterilization

C. Moist heat sterilisation

D. Disinfectant
318. Phagocytosis enhanced by coating the surface of antigen is called______________?
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A. Opsonisation

B. CFT

C. De coding

D. Chemotaxis

319. The minimum time required for the sterilization of surgical instruments by moist heat at 134C is__________________?
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A. 30 minutes

B. 15 minutes

C. 3 minutes

D. 60 minutes

320. A diabetic patient developed cellulitis due to staphylococcus aureus, which was found to be Methicillin resistant on the antibiotic sensitivity testing. All of the following antibiotics will be appropriate EXCEPT________________?
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A. Linezolid

B. Vancomycin

C. Imipenem

D. Teichoplanin