microbiology Mcqs
51. Hot air oven cannot be used for sterlisling___________________?
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A. Needles

B. Instruments

C. Culture media

D. Clothes

52. Common name for Trichuris trichura________________?
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A. Tape worm

B. Round worm

C. Seat woman

D. Whip worm
54. Mark true in following ?
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A. Hanta virus pulmonary syndrome is caused by inhalation of rodent urine and faces

B. Lyssa virus is transmitted by ticks

C. Kyanasur forest disease is caused by bite of wild animal

D. None of the above

56. Anaerobic bacteria can be cultured in__________________?
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A. L-J medium

B. Robertson cooked meat medium

C. Sabourauds agar

D. Loefflers medium

57. Aflatoxins are produced by________________?
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A. Aspergillus flavus

B. Aspergillus niger

C. All of the above

D. Aspergillus fumigatus

58. Dorsets egg medium is used for cultivation of______________?
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A. Staphylococcus

B. Gonococcus

C. Streptococcus

D. Mycobacterium
59. By using phase contrast microscope_______________?
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A. External capsule formation can be observed

B. Internal structures are differentiated in living cells

C. Internal metabolic activities can be observed

D. Internal structures are differentiated in dead cells

60. Culture medium for corynebacterium diphtheria_______________?
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A. Loefflers serum slope

B. Lowenstein Jensen medium

C. Saboraud agar

D. Mc Conkey

61. Plaque test is used routinely in virology labs for________________?
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A. To separate specific clone of virus

B. To maintain certain viral culture

C. To prepare vaccines

D. Identification of viral disease
62. Black water fever is caused by______________?
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A. Microfilaria

B. Leishmania donovani

C. Plasmodium falciparum

D. Plasmodium vivax

63. Exotoxins are____________________?
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A. None

B. Protein compound

C. Lipoprotein

D. Lipid-polysaccharide complex

64. Louis Pasteur is not associated with_______________?
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A. Introduction of complex media

B. Discovery of M. Tuberculosis

C. Discovery of Rabies Vaccine

D. Disproved spontaneous regression theory

65. The earliest identifiable cells of T-Cell lineage during maturation are_______________?
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A. CD7+ Pro-T-Cells

B. CD8+ Pro-T-Cells

C. CD8+ Pre-T-Cells

D. CD5+ Pre-T-Cells

67. All are true about Entamoeba histolytica except________________?
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A. Trophozoites colonise in the colon

B. Cysts are 4 nucleated

C. The chromatid bodies are stained by iodides

D. Cysts are 8 nucleated
68. True about HIV are all except______________?
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A. Macrophages are the reservoir

B. Attacks CD4 cells

C. DNA virus

D. Decrease CD4 count in late stages

69. Bacteriophage was discovered by_________________?
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A. Twort and dherelle

B. Metchinkoff

C. Robert koch

D. Menkin

71. All are seen in a cysts of E. histolytica except_____________?
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A. Glycogen mass

B. Chromatid bars

C. Eccentric nucleus

D. Refractile nucleus
72. Blood agar is________________?
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A. Enriched media

B. Transport media

C. Simple media

D. Differential media

73. Disinfection of the rooms can be done by using_______________?
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A. Chlorine gas

B. High efficiency particle arrestors

C. 40% formaldehyde vapour

D. 20% phenol

74. Australian antigen is_______________?
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A. None of the above

B. HBV

C. HB Ag

D. HBs AG
76. Dry heat destroys microorganisms by_____________?
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A. Lysis

B. Coagulation of proteins

C. Oxidation

D. Hydrolysis of DNA

77. parasitic inflammation would show predominantly____________________?
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A. Lymphocytes

B. Neutrophilis

C. Eosinophils

D. Basophils

79. Endotoxins are produced by________________?
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A. Fungi

B. Gram +ve bacteria

C. Virus

D. Gram -ve bacteria
80. Interferon interferes with replication of virus at the time of_____________?
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A. Protein synthesis

B. DNA/RNA replication

C. When virus enters the cell

D. Uncoating of the virus proteins capsule

84. Dengue virus belongs to______________?
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A. Flavi virus

B. Rhabdoviridae

C. Reoviridae

D. Togaviridae

85. Which of the following viruses appears to be involved in the pathogenesis of Kaposis sarcoma_____________?
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A. Human Herpes Virus 4

B. Human Herpes Virus 1

C. Human Herpes Virus 8

D. Human Herpes Virus 3

87. Methods for the diagnosis of superficial fungal infection________________?
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A. All of the above

B. KOH staining

C. Microscopic examination of skin scrapings

D. Wood light examination

88. Candida is most often implicated in causation___________________?
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A. Tenea capitis

B. Desert rheumatism

C. Thrush

D. Conjunctivitis

89. Culture media of candida is_________________?
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A. Saborauds medium

B. Methylene blue dextrose agar

C. All of the above

D. Pingolevin

90. Which of the following is not a pox virus ?
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A. Cowpox

B. Molluscum contagiosum

C. chicken pox

D. Small pox

91. In falciparum malaria, causes of anemia are due to all except__________________?
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A. Malabsorption

B. Spleen sequestration

C. Bone marrow depression

D. Hemolysis

92. Which is type II hypersensitivity ?
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A. Cytotoxic / cytolytic type

B. Immune complex mediated

C. Anaphylaxis

D. Delayed hypersensitivity

93. Delhi boil refer to_______________?
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A. L. Tropica sore

B. Venereal ulcer

C. Malignant pustule

D. Solar Keratosis

94. Thread worm is______________?
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A. Ancylostoma

B. Ascaris

C. Enterobius

D. Necator

95. The difference between sterilization and disinfection is that_______________?
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A. Sterilization is easier to achieve

B. Sterilization involves chemicals and disinfection involves physical methods

C. Sterilization kills all spores but disinfection does not

D. Disinfection kills all spores but sterilization does not

96. Which of the following is true about amoebic liver disease ?
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A. Non-suppurative form is the serious form of extra intestinal amoebiasis

B. Trophozoites can be visualized in the pus

C. Portal system is the main filtration system

D. Left lobe of liver is commonly involved

99. The component that sensitizes bacteria and virus to UV irradiation_______________?
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A. Inorganic salts

B. Nucleic acids

C. Lipids

D. Carbohydrates