Microbiology MCQs

A darkfield microscope would be useful in examining blood for:

A. Treponema
B. Actinomyces
C. Streptococcus
D. Mycobacterium

Immunoglobulins ar secreted by:

A. Macrophages
B. Plasma cells
C. T-cells
D. Neutrophils

Serum sickness syndrome is an example of:

A. Anaphylactic
B. Angioneurotic edema
C. Cell-mediated immunity
D. Systemic arthus reaction

Secretory Ig is:

A. IgA
B. IgE
C. IgM
D. IgD

The binding site for complement on the IgG molecule is in the:

A. VL domian
B. CL domian
C. CH1 domian
D. CH2 domian

The immediate type of hypersensitivity in which histamine doses not play a major role is:

A. Urticaria
B. Asthma
C. Anaphylaxis
D. Arthus reaction

Endotoxins differ from exotoxins in that endotoxins:

A. are proteins
B. are heat labile
C. are highly antigenic
D. activate complement by the alternate pathway

B.C.G untrue is:

A. live vaccine
B. T.B vaccine
C. Orally administered
D. All of the above

First released immunoglobulin after primary immunization:

A. IgD
B. IgE
C. IgG
D. IgM

Exaltation is:

A. Decreased virulence
B. Increased Virulence
C. No change
D. None

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