ANTIBODY QUIZ | EXAMIANS

Anti-Rh antibodies are

IgG type

IgE type

IgD type

IgA type

TRUE ANSWER : ?
YOUR ANSWER : ?

The class of immunoglobulin, most abundant in body is

IgE

IgD

IgM

IgG

TRUE ANSWER : ?
YOUR ANSWER : ?

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

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

it is impossible to generate a self-reactive antibody

self reactive B cells are killed by CD8 T cells

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

TRUE ANSWER : ?
YOUR ANSWER : ?

Antigen binding sites of an immunoglobulin are located in

heavy chain alone

Fab regions of the antibody

Fc region of the antibody

light chain alone

TRUE ANSWER : ?
YOUR ANSWER : ?

Which is not a function of IgA?

Protect mucosal surfaces

Agglutinate antigen

Fix complement

Protect eyes

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following theory of antibody production is most widely accepted?

Clonal selection theory

Side chain theory

Indirect template theory

Direct template theory

TRUE ANSWER : ?
YOUR ANSWER : ?

Simulation of which of the following will lead to appearance of first antibody to appear following stimulation by an antigen?

IgA

IgG

IgE

IgM

TRUE ANSWER : ?
YOUR ANSWER : ?

Which is the most efficient complement fixing class of antibody?

IgG

IgM

IgE

IgA

TRUE ANSWER : ?
YOUR ANSWER : ?

The secretary component of sIgA is

added to dimeric IgA by the M cell

made by plasma cells that secrete dimeric IgA

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

made by T cells

TRUE ANSWER : ?
YOUR ANSWER : ?

The class of immunoglobulins which can cross the placenta is

IgD

IgG

IgA

IgM

TRUE ANSWER : ?
YOUR ANSWER : ?