ANTI BODIES QUIZ | EXAMIANS

Structures of anti-PCP antibody shows that the tight binding of PCP to the antibody is primarily due to

none of these

electrostatic forces.

hydrophobic forces

Van der Waals forces.

TRUE ANSWER : ?
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Each IgA antibody molecule consists of

two polypeptide chain and has two antigen binding site

four polypeptide chain and has two antigen binding site

three polypeptide chain and has two antigen binding site

two polypeptide chain and has one antigen binding site

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IgE provides

complement killings of the cells and phagocytosis

immunity against some parasites

All of these

secretions in the body

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Cleavage of an IgG molecule by a specific protease can produce

an antigen-binding site and two constant regions

an inactive mixture of oligopeptides

two Fab fragments and one Fc fragment

two heavy chain-light chain dimers

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β-Lymphocytes are often called simply

T cells

B cells

none of these

T Lymphocytes

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Alum is an effective adjuvant because it

disaggregates the antigen.

slows the release of antigen

is immunogenic for T cells

is immunogenic for stem cells

TRUE ANSWER : ?
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Antibodies in the human immune system can identify approximately 108 different molecules Which one of the following is correct?

Most of these antibodies recognize proteins

Many of these molecules are self-antigens

This diversity is generated from 108 different immunoglobin genes

Most of these antibodies recognize small organic molecules

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Papain digest IgG into

two Fab fragments and one Fc fragment

two Fab fragments and two Fc fragments

three Fab fragments and three Fc fragments

three Fab fragments and two Fc fragments

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Antibodies of the IgG class

All of these

are glycoproteins

are secreted into the bloodstream

consist of four subunits

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A secondary antibody is an antibody that

is produced in boostered animals

binds to another antibody

is synthetically produced

has been used in prior experiments

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