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Microbiology Mcqs

The Ig found in exocrine secretions is_____________?

  • (A)  IgG
  • (B)  IgD
  • (C)  IgM
  • (D)  IgA
Submitted By :Ali Uppal

Bacterial spores are destroyed by_______________?

  • (A)  Boiling at 100°C
  • (B)  Disinfection by hypochlorite solution
  • (C)  Autoclave
  • (D)  Pasteurisation
Submitted By :Ali Uppal

Which of the following is not a feature of anaphylaxis ?

  • (A)  Delayed reaction
  • (B)  Immediate reaction
  • (C)  passive transfer by serum
  • (D)  None of the above
Submitted By :Ali Uppal

compared with autoclave, use of a dry heat over for sterilization has the following disadvantages______________?

  • (A)  Time-consuming
  • (B)  Less effective
  • (C)  Causes instruments to rust
  • (D)  Causes sharp instruments to dull
Submitted By :Ali Uppal

Sterilisation is______________?

  • (A)  Pathogens killed but spores are not affected
  • (B)  Only pathogenic micro-organisms killed
  • (C)  Non-pathogenic killed
  • (D)  All pathogenic and non-pathogenic microorganisms killed
Submitted By :Ali Uppal

About Bacteroids True are all Except_______________?

  • (A)  Susceptible to many antibiotics
  • (B)  Present mainly in mixed infections
  • (C)  Most common species is B fragilis
  • (D)  Bile resistant anerobes
Submitted By :Ali Uppal

Which is not true about vibrio cholera_________________?

  • (A)  It is non-halophilic
  • (B)  Grows on simple media
  • (C)  Man is the only natural host
  • (D)  Cannot survive in extracellular environment
Submitted By :Ali Uppal

Pseudomonas aeruginosa_________________?

  • (A)  Produces heat stable enterotoxin
  • (B)  Causes Shangai fever
  • (C)  Cannot be destroyed at 55 degree at 1 hr.
  • (D)  Does not produce any pigment
Submitted By :Ali Uppal

Which of the following is true about tetanus acquired through traumatic wound ?

  • (A)  Clostridium tetani travels via the nerves to the anterior horn dells in spinal cord
  • (B)  The tetanospasmin component of the exotoxin act on the post-synaptic neurones and prevents impulse transmission
  • (C)  The patient should be given tetanus toxoid intravenously
  • (D)  Causes positive Nagler reaction
Submitted By :Ali Uppal

Actinomycosis is a_________________?

  • (A)  Aerobic bacterial disease
  • (B)  Anaerobic bacterial disease
  • (C)  Aerobic fungal disease
  • (D)  Anaerobic fungal disease
Submitted By :Ali Uppal

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