microbiology MCQs – Page 6

Practise focused microbiology questions with marked answers for exam preparation and subject revision.

microbiology Mcqs
101. EBV is responsible for all except______________?
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A. Burkitts lymphoma

B. Nasopharyngeal carcinoma

C. Hepatoma

D. Infectious mononucleosis

102. Fungal infection of human beings is called as_____________?
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A. Mucorsis

B. Fungosis

C. Micromia

D. Mycosis
103. The protective effects breast milk are known to be associated with______________?
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A. Mast cells

B. IgM antibodies

C. Lysozyme

D. IgA antibodies
104. Anti HBsAB indicates______________?
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A. Resistance to hepatitis B

B. Hepatocellular carcinoma

C. Acute infection

D. Good prognosis
105. In transmission of malaria, mosquito bite transfers_______________?
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A. Merozoite

B. Hypnozoite

C. Sporozoite

D. Gametocyte

106. Stain used to make the wetted area of filter paper strip more visible is_____________?
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A. Eosin stain

B. Blue stain

C. Ninhydrin stain

D. Haemotoxin stain

107. Following reaction are produced by heterophil antigens except_____________?
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A. Paul bunnel reaction

B. Weil-Felix reaction

C. Forssman antigen antibody reaction

D. Widal reaction
108. When horse serum is injected intravenoulsy in to a rabbit and again in to the skin two or three weeks later, what is the necrotizing reaction that occurs as the site of the second injection________________?
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A. Serum sickness

B. Atopy

C. Arthus phenomenon

D. Anaphylaxis

109. Complement factor through which common pathway begins___________________?
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A. C3

B. C2

C. C5

D. Protein B

110. Spores are disinfected by_______________?
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A. Glutaraldehyde

B. Betapropiolactone

C. Formaldehyde

D. Hexachlorophen

E. Both A & C
111. CD4 count in normal healthy adult is_______________?
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A. 1000

B. 500

C. 300

D. 200

112. Bacterial cell does not possess___________________?
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A. Mitochondria

B. Ribosome

C. dna

D. Cell wall

113. IL-1 and TNF a during inflammation are secreted by______________?
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A. Lymphocytes

B. Platelet

C. Activated macrophages

D. Plasma cells

114. Fungus capable to forming fungal ball is ________________?
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A. Rhizopus

B. Aspergillus

C. Penicillium

D. Mucor

115. Salivary protein, which prevents transmission of human immunodeficiency virus via saliva, is____________?
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A. Secretory IgA

B. Histidine rich proteins

C. Salivary leukocyte proteinase inhibitor

D. Sialoperoxidase

116. Virus infected cell is killed by________________?
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A. Interferons

B. Autolysis

C. Macrophages

D. Neutrophils

117. Which of the following is not a kochs postulate ?
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A. Pure cultures can be obtained

B. The bacteria should be able to be isolated from a diseased tissue

C. When inoculated in experimental animals bacteria may or may not cause disease

D. Bacteria should be able to be isolated from the diseased tissue in the experimental animals

118. Antigen combining site of the antibody is____________________?
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A. Hapten

B. Epitope

C. Idiotope

D. Paratope
119. True about immune response of hepatitis B is__________________?
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A. CMI disappears soon after recover

B. Antibody to HBC is not protective

C. Highest titres of anti HBC are found in persistent carriers of HBs Ag

D. Antibody of HBs Ag is associated with resistance to infection
120. Serological study for prevalence of Hepatitis B is best done by______________?
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A. Core antigen

B. Surface antigen

C. Core antibody

D. Surface antibody