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