Microbiology MCQs

Page No. 30

Opsonisation is by_______________?


aIgA


bIgE


cIgG


dIgM


View Answer IgG+IgM

Antigen combining site of the antibody is____________________?


aIdiotope


bParatope


cEpitope


dHapten


View Answer Paratope

Function of Ig A is________________?


aActs as a mucosal barrier for infection


bCirculating antibody


cKills virus infected cells


dActivates macrophages



Complement binding immunoglobin via the classical pathway is_______________?


a IgG & igM


bIgG & IgA


cIgG & IgD


dIgD & IgE


View Answer IgG & igM

Most sensitive test for antigen detection is_______________?


aRadioimmuno Assay


bELISA


cImmunoflourescence


dPassive hemaglutination


View Answer Radioimmuno Assay

Prozone phenomenon is due to______________?


aDisproportionate antigen antibody levels


bExcess antigen


c Excess antibody


dHyper immune reaction


View Answer Excess antibody

Virus infected cell is killed by________________?


aInterferons


bMacrophages


cNeutrophils


dAutolysis


View Answer Interferons

IL-1 and TNF a during inflammation are secreted by______________?


aPlasma cells


bActivated macrophages


cLymphocytes


dPlatelet


View Answer Activated macrophages

The protective effects breast milk are known to be associated with______________?


aIgM antibodies


b Lysozyme


cMast cells


dIgA antibodies


View Answer IgA antibodies

Immunity that is conferred to the foetus by transfer of IgG and IgA antibodies is called as______________?


aActive acquired immunity


bPassive acquired immunity


cNatural active immunity


dPassive natural immunity



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