ANTIGEN QUIZ

A pathogen can be a (n)

All of these

virus

agent that causes a disease

bacteria

TRUE ANSWER : ?
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Antigen, when injected in the body activates its specific lymphocytes in the

draining lymph nodes

blood circulation

MALT (mucosa associated

spleen lymphoid tissue

TRUE ANSWER : ?
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A virus vaccine that can activate cytotoxic T cells must contain

an adjuvant to stimulate T cell division

a high dose of virus particles

virus peptides

live virus

TRUE ANSWER : ?
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The antibiotic penicillin is a small molecule that does not induce antibody formation. However, penicillin binds to serum proteins and forms a complex that in some people induces antibody formation resulting in an allergic reaction. Penicillin is therefore

both an antigen and a hapten

a hapten

an immunogen

an antigen

TRUE ANSWER : ?
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Very low doses of antigen may induce

low zone tolerance

immunological ignorance

low zone immunity

hypersensitivity

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A molecule that can be covalently linked to a non-immunogenic antigen to make it an immunogen is called a (n)

adjuvant

carrier

mitogen

hapten

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Which of the following is incorrect with regard to antigen epitopes?

An epitope may be shared by two different antigens

A protein molecule usually contains multiple epitopes

B cells bind only processed antigen epitopes

Epitopes may be linear or assembled

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The ability of an antigen to induce an immune response does not depend on the antigen's

ability to enter the thyroid

dose

degree of aggregation

size

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Lymphocytes are activated by antigen in the

liver

bone marrow

blood stream

lymph nodes

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CD antigens

are expressed on immune cells to mark them for separation

are each expressed on only one cell type

allow leukocytes to recognize antigen

function as receptors for cytokine and CAMs

TRUE ANSWER : ?
YOUR ANSWER : ?

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