Microbiology MCQs

Page No. 25

Which of the following organisms does NOT react with gram’s stain ?


a Actinomyces israelii

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bCandida albicans

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cMycobacterium tuberculosis

✓


dStreptococcus mutan

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Complement factor through which common pathway begins___________________?


aC3

✓


bC5

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cC2

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dProtein B

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View Answer C3

The key cell types involved in the acquired immunity include all EXCEPT________________?


aB lymphocytes

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bErythrocytes

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cT lymphocytes

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dAntigen presenting cells (APC

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View Answer Erythrocytes

Sterilization is a process in which_________________?


aKill all pathogenic micro-organisms

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bKill all non-pathogenic micro-organisms in the environment

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cDeactivate all pathogens not spores

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dDeactivate all spores and dill pathogenic organism

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Immunoglobulin crossing placenta is_________________?


aIg M

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bIg A

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cIg G

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dIg D

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View Answer Ig G

The term animalcules to oral microorganisms is given by__________________?


aWd miller

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b Leumenhoek

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cRobertson

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dSocranci

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View Answer Leumenhoek

Which of the following immunoglobulins has the highest mean serum concentration in humans_________________?


aIgA

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bIgD

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c IgG

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dIgM

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View Answer IgG

In patients with asthma due to an allergic cause the serum levels of which immunoglobulin increase____________________?


aIgD

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bIgM

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cIgA

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dIgE

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View Answer IgE

Type of receptor present on T-cells are__________________?


aIg A

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bIg G

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cProstaglandins

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dCD4

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View Answer CD4

Hot air oven cannot be used for sterlisling___________________?


aClothes

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bInstruments

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cCulture media

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dNeedles

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View Answer Culture media

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