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Microbiology Mcqs

Causative agents of Vincent’s angina_____________?

  • (A)  Borrelia vincenti and fusobacterium fusiformis
  • (B)  Borrelia recurrents and bateroides
  • (C)  Borrelia burgoloferi and lactobacillus
  • (D)  Leptospira and Treponema pallidum
Submitted By :Ali Uppal


Group A B-hemolytic streptococcal infection of the pharynx may be followed in some by_____________?

  • (A)  Diphtheria
  • (B)  Typhoid fever
  • (C)  Rheumatic fever
  • (D)  Syphilis
Submitted By :Ali Uppal


Which of the following is an acid-fast bacillus_____________?

  • (A)  Mycobacterium bacilli
  • (B)  Treponema pallidum
  • (C)  Neisseria gonorrhea
  • (D)  All of the above
Submitted By :Ali Uppal


Diphtheria is pathogenic only when infected with______________?

  • (A)  Beta phage
  • (B)  Alfa phage
  • (C)  Lambda K12
  • (D)  Delta Phage
Submitted By :Ali Uppal


The most common site where organisms are present in a typhoid carrier is______________?

  • (A)  Spleen
  • (B)  Gall Bladder
  • (C)  Liver
  • (D)  Salivary gland
Submitted By :Ali Uppal


Gram -ve bacteria stain during gram staining____________?

  • (A)  Blue color
  • (B)  Red color
  • (C)  Green
  • (D)  Colorless
Submitted By :Ali Uppal


Silver impregnation method of staining is useful to demonstrate_____________?

  • (A)  Bacterial flagella
  • (B)  Spirochetes
  • (C)  Both of the above
  • (D)  None of the above
Submitted By :Ali Uppal


The temperature required for cultivating mycobacterium________________?

  • (A)  2 degree
  • (B)  0 degree
  • (C)  27 degrees
  • (D)  37 degrees
Submitted By :Ali Uppal


Toxic shock syndrome is due to the following virulence factor_____________?

  • (A)  M protein
  • (B)  Pyrogenic exotoxin
  • (C)  Streptolysin 0
  • (D)  Carbohydrate cell wall
Submitted By :Ali Uppal


Endotoxin have all but one of the properties given below_______________?

  • (A)  Produced by gram negative bacteria
  • (B)  Produced by gram positive bacteria
  • (C)  Not secreted outside the cell
  • (D)  Cannot be toxoided
Submitted By :Ali Uppal