Microbiology MCQs

Page No. 25

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


a Actinomyces israelii


bCandida albicans


cMycobacterium tuberculosis


dStreptococcus mutan



Complement factor through which common pathway begins___________________?


aC3


bC5


cC2


dProtein B


View Answer C3

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


aB lymphocytes


bErythrocytes


cT lymphocytes


dAntigen presenting cells (APC


View Answer Erythrocytes

Sterilization is a process in which_________________?


aKill all pathogenic micro-organisms


bKill all non-pathogenic micro-organisms in the environment


cDeactivate all pathogens not spores


dDeactivate all spores and dill pathogenic organism



Immunoglobulin crossing placenta is_________________?


aIg M


bIg A


cIg G


dIg D


View Answer Ig G

The term animalcules to oral microorganisms is given by__________________?


aWd miller


b Leumenhoek


cRobertson


dSocranci


View Answer Leumenhoek

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


aIgA


bIgD


c IgG


dIgM


View Answer IgG

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


aIgD


bIgM


cIgA


dIgE


View Answer IgE

Type of receptor present on T-cells are__________________?


aIg A


bIg G


cProstaglandins


dCD4


View Answer CD4

Hot air oven cannot be used for sterlisling___________________?


aClothes


bInstruments


cCulture media


dNeedles


View Answer Culture media

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