ANTIBODY QUIZ | EXAMIANS

Which of the following is the phylogenetically oldest immunoglobulin?

IgG

IgM

IgE

All are similar

TRUE ANSWER : ?
YOUR ANSWER : ?

Heat-labile class of immunoglobulins include

IgA

IgG

IgM

IgE

TRUE ANSWER : ?
YOUR ANSWER : ?

The secretary component of sIgA is

added to dimeric IgA by the M cell

formed by cleavage of an epithelial cell receptor used to transport the dimeric IgA across the epithelial cell

made by T cells

made by plasma cells that secrete dimeric IgA

TRUE ANSWER : ?
YOUR ANSWER : ?

Which is the most efficient complement fixing class of antibody?

IgG

IgE

IgM

IgA

TRUE ANSWER : ?
YOUR ANSWER : ?

The class of immunoglobulins which can cross the placenta is

IgA

IgD

IgG

IgM

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following mediates Type I hypersensitivity reaction?

IgM

IgD

IgE

IgG

TRUE ANSWER : ?
YOUR ANSWER : ?

The class of immunoglobulin, most abundant in body is

IgM

IgE

IgD

IgG

TRUE ANSWER : ?
YOUR ANSWER : ?

Self reactive antibodies are not found in significant concentration in normal serum because

self reactive B cells switch to IgA which is all secreted and not present in serum

it is impossible to generate a self-reactive antibody

self reactive B cells are killed by CD8 T cells

B cells that are stimulated via their surface bound antibody in the absence of T cell help to commit suicide

TRUE ANSWER : ?
YOUR ANSWER : ?

J chain is present in

IgA

IgE

IgM

Both (a) and (b)

TRUE ANSWER : ?
YOUR ANSWER : ?

Which is not a function of IgG?

Major antibody in serum

Involved in opsonization

Activates or fixes complement

First antibody type produced against an antigen during the primary antibody response

TRUE ANSWER : ?
YOUR ANSWER : ?