microbiology Mcqs
352. The commonly used fluorescent dye in the detection of tubercie bacilli________________?
comments icon0
A. Auramine and Rhodamine

B. Congo red

C. Thioglavin

D. Acridine orange

353. Immunoglobulin consists of________________?
comments icon0

A. 1 heavy, 2 light chains

B. 3 light, 1 heavy chain

C. 1 light, 1 heavy chain

D. 2 light, 2 heavy chains
355. Which of the following are non-spore forming anaerobic bacteria that asume major significance in disease processes________________?
comments icon0

A. Fusobacterium nucleatum

B. Bacteroides fragilis

C. Actinomyces Israeli

D. Peptostreptococcus anaerobius

E. All of the above
356. Multiple drug resistance of bacteria depends on which of the following_______________?
comments icon0

A. Colicigenic factor (Col)

B. Fertility factor (F+)

C. All of the above

D. Resistance transfer factor (RTF)
357. Following are the characteristics of Vincents angina EXCEPT_______________?
comments icon0

A. Caused due to malnutrition

B. Ulcerative gingivostomatitis

C. A symbiotic infection

D. Caused by leptospira interrogans
358. The diagnostic investigation for syphilis is__________________?
comments icon0

A. TPI test

B. VDRL test

C. TPHA test

D. FTAB test

E. Both C & D
359. Culture medium for corynebacterium diphtheria______________?
comments icon0

A. Mc Conkey

B. Loefflers serum slope

C. Lowenstein Jensen Medium

D. Saborauds agar

360. Which is not true about vibrio cholera_________________?
comments icon0

A. Grows on simple media

B. Man is the only natural host

C. It is non-halophilic

D. Cannot survive in extracellular environment
361. Actinomycosis is caused by______________?
comments icon0

A. Acid fast, non-motile bacillus

B. Anaerobic, gram positive, non-acid fast bacteria.

C. Retrovirus

D. Fungus

362. Common inhabitant of throat and tonsils is______________?
comments icon0

A. Beta hemolytic streptococci

B. Alpha hymolytic streptococci (S. viridans)

C. Pneumococci

D. Staphylococci

363. Commonest mycobacterial infection in tropical countries_______________?
comments icon0

A. Kansasi

B. M. tuberculosis

C. M. leprae

D. M. avium intracellulare

364. Phage conversion is required for________________?
comments icon0

A. Tularemia

B. Diptheria

C. All o f the above

D. Gonorrhoea

366. One of the following staining methods is an example of negative staining_______________?
comments icon0

A. Zheil-Neilsons staining

B. Grams staining

C. India ink preparation

D. Fontanas staining

367. Bacteria acquire characteristics by all the following except_______________?
comments icon0

A. Through plasmids

B. Through bacteriophages

C. Incorporating part of host DNA

D. Through conjugation

368. Neurotoxin of tetanus acts on______________?
comments icon0

A. Brain

B. Synapse

C. Muscle

D. Spinal card
369. The spirochete which is associated with fusospirochetosis is______________?
comments icon0

A. Borrelia burgdorferi

B. Treponema pallidum

C. Treponjema pertenue

D. Borrelia vincenti
370. Actinomycosis is a_________________?
comments icon0

A. Aerobic fungal disease

B. Anaerobic bacterial disease

C. Aerobic bacterial disease

D. Anaerobic fungal disease

371. Synthesis of antibodies in plasma cells occurs in_________________?
comments icon0

A. Nucleus

B. Golgi body

C. Mitochondria

D. Endoplasmic reticulum
373. The following are applicable to bacterial genoms except________________?
comments icon0

A. It is composed of DNA

B. It doe not contain histones

C. It is circular

D. Its DNA has both introns and extrons
374. Staphylococcal toxic shock syndrome (SSS syndrome) is due to______________?
comments icon0

A. Enterotoxin D

B. Enterotoxin B

C. Enterotoxin A

D. Enterotoxin F
375. Cough plate method is used to identify________________?
comments icon0
A. Pertussis

B. M-Tuberculosis

C. Y. pestis

D. Mycoplasma

376. Noguchis medium is used for________________?
comments icon0

A. Bordetella

B. Borrelia

C. None of the above

D. Brucella

377. Nagglers reaction is used in the diagnosis of______________?
comments icon0
A. Gas gangrene

B. Wool sorters disease

C. Malaria

D. Whooping cough

379. Leprosy bacilli are transmitted from person to person by all except______________?
comments icon0
A. Through breast milk

B. From open sore

C. Through intact skin

D. Dischange from nasal mucosa

380. T cell matures in______________?
comments icon0

A. Lymph node

B. Payers patch

C. Thymus

D. Busra of Fabricius

381. Staphylococci typically occur in_________________?
comments icon0

A. Tetrads

B. Chains

C. Irregular clusters

D. Pairs

383. Techoic acid is present in_____________?
comments icon0

A. Cytoplasm of Gram negative organisms

B. Cell wall of Gram negative organisms

C. Cell wall of Gram positive organisms

D. Cytoplasm of Gram positive organisms

384. Purpose of Sterilization is to eliminate________________?
comments icon0

A. Bacteria

B. Viruses

C. Fungus

D. Spore formers
387. All are true about legionella pneumophilia except______________?
comments icon0
A. Person to person transmission

B. Aquatic bodies are main habitat

C. It can replicate in amoeba

D. Urine test is a reliable method

388. Fimbriae are demonstrated by ___________________?
comments icon0

A. Culture

B. Biochemical reaction

C. Gram stain

D. Haemagglutination test
390. The major antiseptic value of soap lies in its ability to_____________?
comments icon0
A. Remove microbes

B. Inhibit microbial growth

C. Kill mircobes

D. Dehydrate microbial cells

391. Sporulation occurs in__________________?
comments icon0

A. Log phase

B. Stationary phase

C. Decline phase

D. Lag phase

392. Endotoxin have all but one of the properties given below_______________?
comments icon0

A. Not secreted outside the cell

B. Cannot be toxoided

C. Produced by gram positive bacteria

D. Produced by gram negative bacteria

394. Causative organism for gas gangrene_______________?
comments icon0

A. Clostridium tetani

B. Clostridium welchii

C. Coli

D. Strep. Faecalis

395. Silver impregnation method of staining is useful to demonstrate_____________?
comments icon0

A. Bacterial flagella

B. Spirochetes

C. Both of the above

D. None of the above

396. Virulence of Gonococcus is due to___________________?
comments icon0

A. Its intracellular location

B. Cell Membrane

C. Cytolytic enzymes

D. Pili
397. Which one of the following enteric organisms is anaerogenic and non motile ?
comments icon0

A. Salmonella typhi

B. Proteus mirabilis

C. Klebsiella pneumonia

D. Shigella sonnei
398. Which of the following characteristics of bacteria is not true?
comments icon0

A. Unicellular

B. Having either DNA or RNA

C. Cell wall containing muramic acid

D. Free living

399. B.C.G untrue is_____________?
comments icon0

A. All of the above

B. T.B vaccine

C. Orally administered

D. live vaccine

400. Delayed tuberculin test response is due to_______________?
comments icon0

A. Monocytes

B. T lymphocytes

C. Histiocytes

D. B lymphocytes