ANTIGEN QUIZ | EXAMIANS

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

mitogen

hapten

adjuvant

carrier

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A pathogen can be a (n)

bacteria

agent that causes a disease

All of these

virus

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A virus vaccine that can activate cytotoxic T cells must contain

live virus

virus peptides

a high dose of virus particles

an adjuvant to stimulate T cell division

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

Epitopes may be linear or assembled

An epitope may be shared by two different antigens

A protein molecule usually contains multiple epitopes

B cells bind only processed antigen epitopes

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Very low doses of antigen may induce

low zone tolerance

immunological ignorance

low zone immunity

hypersensitivity

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

MALT (mucosa associated

spleen lymphoid tissue

blood circulation

draining lymph nodes

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Lymphocytes are activated by antigen in the

bone marrow

lymph nodes

liver

blood stream

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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

an antigen

a hapten

both an antigen and a hapten

an immunogen

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

innate immunity blocks the activation of adaptive immune effector cells

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

innate immune effectors are eliminating antigen

antigen is hidden from the immune system in macrophages

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