ANTIGEN QUIZ | EXAMIANS

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

hapten

carrier

adjuvant

mitogen

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

A protein molecule usually contains multiple epitopes

Epitopes may be linear or assembled

B cells bind only processed antigen epitopes

An epitope may be shared by two different antigens

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A virus vaccine that can activate cytotoxic T cells must contain

a high dose of virus particles

live virus

an adjuvant to stimulate T cell division

virus peptides

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During the lag period between antigen contact and detection of adaptive immunity,

antigen is hidden from the immune system in macrophages

new B and T cells with the appropriate antigen specificity must be produced in the bone marrow

innate immune effectors are eliminating antigen

innate immunity blocks the activation of adaptive immune effector cells

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CD antigens

allow leukocytes to recognize antigen

are each expressed on only one cell type

function as receptors for cytokine and CAMs

are expressed on immune cells to mark them for separation

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Antigen, when injected in the body activates its specific lymphocytes in the

draining lymph nodes

MALT (mucosa associated

spleen lymphoid tissue

blood circulation

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Very low doses of antigen may induce

hypersensitivity

immunological ignorance

low zone tolerance

low zone immunity

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

degree of aggregation

size

ability to enter the thyroid

dose

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For specific antigen recognition by T cells,

MHC molecules are not required

antigen is bound by a T cell membrane antibody

denaturation of antigen does not reduce epitope recognition

antigen exposure during T cell maturation is required

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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

an immunogen

an antigen

a hapten

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