Get App on

Play Store

Microbiology Mcqs

Submitted By :Ali Uppal


All of the following lab tests can be used to distinguish streptococcus mutans from other oral streptococci, except______________?

  • (A)  Gram staining
  • (B)  Fermentation of mannitol and sorbital
  • (C)  Production of intracellular and extracellular adherent polysacharide
  • (D)  Colony morphology on saliva agar
Submitted By :Ali Uppal


Neurotoxin of tetanus acts on______________?

  • (A)  Synapse
  • (B)  Muscle
  • (C)  Brain
  • (D)  Spinal card
Submitted By :Ali Uppal


Organism most frequently associated with urinary tract infections is_________________?

  • (A)  Neisseria gonorrhea
  • (B)  Escherichia coli
  • (C)  T-strain mycoplasma
  • (D)  Streptococcus fecalis
Submitted By :Ali Uppal


Growth factor needed for Salmonella_________________?

  • (A)  Tryptophan
  • (B)  Niacin
  • (C)  B-12
  • (D)  Citrate
Submitted By :Ali Uppal


Subacute bacterial endocarditis is caused by_____________?

  • (A)  Streptococcus viridans
  • (B)  Haemolytic streptococci
  • (C)  Staphylococcus aureus
  • (D)  Nisseria
Submitted By :Ali Uppal


The diagnosis of gonorrhea is established by_____________?

  • (A)  Compliment fixation tests
  • (B)  Pili agglutination tests
  • (C)  Haemagglutination tests
  • (D)  All of the above tests
Submitted By :Ali Uppal


Which of the following are non-spore forming anaerobic bacteria that asume major significance in disease processes________________?

  • (A)  Bacteroides fragilis
  • (B)  Fusobacterium nucleatum
  • (C)  Peptostreptococcus anaerobius
  • (D)  Actinomyces Israeli
  • (E)  All of the above
Submitted By :Ali Uppal


What is the transport medium for cholera___________________?

  • (A)  Tellurite Medium
  • (B)  Cary Blair Medium
  • (C)  Venkatraman – Ramakrishnan Medium
  • (D)  B & C
Submitted By :Ali Uppal


Which organism causes prosthetic valve endocarditis within 60 days of surgery________________?

  • (A)  Streptococcus Viridans
  • (B)  Staphylococcus epidermis
  • (C)  Staphylococcus aureus
  • (D)  Fungus
Submitted By :Ali Uppal