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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