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Microbiology Mcqs

IgG antibodies have a half-life of approximately_______________?

  • (A)  1 hour
  • (B)  1 day
  • (C)  1 week
  • (D)  1 Month
Submitted By :Ali Uppal


Human immunoglobulins are divided based on_____________?

  • (A)  Functional differences
  • (B)  Structural differences
  • (C)  Complemented fixation
  • (D)  None of the above
Submitted By :Ali Uppal


Toxoids are_________________?

  • (A)  antigenic and toxic
  • (B)  antigenic and non-toxic
  • (C)  non-antigenic and toxic
  • (D)  non-antigenic and non-toxic
Submitted By :Ali Uppal


IgG has subclasses_______________?

  • (A)  1
  • (B)  2
  • (C)  3
  • (D)  4
Submitted By :Ali Uppal


Adjuvant given along with antigens are going to________________?

  • (A)  Increase toxigenicity
  • (B)  Increase antigenicity
  • (C)  Reduce the antigenicity
  • (D)  reduce the toxigenicity
Submitted By :Ali Uppal


Who first introduced solid media_______________?

  • (A)  Louis pasteur
  • (B)  Robert koch
  • (C)  Hensen
  • (D)  Ogston
Submitted By :Ali Uppal


Sterilization of liquid paraffin is done by______________?

  • (A)  Autoclaving
  • (B)  Hot air oven
  • (C)  UV-Radiation
  • (D)  Inspissation
Submitted By :Ali Uppal


Glutaraldehyde is preferred more than formaldehyde because______________?

  • (A)  It has got more bactericidal activity
  • (B)  It has got more bacteriostatic activity
  • (C)  It has got no deleterious effect on the cement and lenses of instruments
  • (D)  Its application is easier
Submitted By :Ali Uppal


Best method of sterilizing disposable syringes_______________?

  • (A)  Hot air oven
  • (B)  U.V. rays
  • (C)  Gamma rays
  • (D)  Boiling
Submitted By :Ali Uppal


A type of immediately occuring reaction in which antigens combine with antibodies already attached to the surface of mast cells and basophils is called_____________?

  • (A)  Type I hypersensitivity
  • (B)  Type II hypersensitivity
  • (C)  Type III hypersensitivity
  • (D)  Type IV hypersensitivity
Submitted By :Ali Uppal