IMMUNE RESPONSE IN BIOCHEMISTRY QUIZ

Which of the following immune cells would have an especially low count in a patient with advanced AIDS?

None of these

Killer T lymphocytes

Helper T lymphocyte

B lymphocytes

TRUE ANSWER : ?
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Polysaccharides on the surface of infecting microorganisms can also activate complement directly in the absence of

None of these

antigen via the alternative pathway

antibody via metabolic pathway

antibody via the alternative pathway

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Immunogenicity

is usually a property of self antigens such as eye tissue

depends on the ability of the native antigen to be presented by MHC

is not a property of haptens

is not a property of antibodies

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In cellular immunity, T lymphocytes are responsible for the recognition and killing of foreign invaders. The cells are

both (a) and (b)

killer T cells

None of these

cytotoxic T lymphocytes (CTL)

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Immunological memory is due to

long lived B cells that secrete a specific antibody

short lived helper T cells that signal macrophage to divide

short lived macrophage that can recognize specific pathogens

long lived B cells that secrete a specific antigen

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To elicit the best antibodies to mouse MHC I, it should be injected into a

goat

mouse of the same genetic background (strain)

mouse of a different strain

rat

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Antibodies bound to an invading microorganism activate the complement system via

Entner-Doudoroff pathway

metabolic pathway

classical pathway

Embden Meyerhof pathway

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What is the result of an abnormal response of the immune system to part of a person's own body?

Passive immunity

An allergic response

An autoimmune disease

Cancer

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To detect a humoral immune response to influenza virus, it is possible to measure

dividing T cells in the draining lymph nodes

serum antibody titer

plasma cytokine levels

cytotoxicity of virus-infected cells in tissue culture

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What are the solutions prepared from weakened or dead microorganisms, viruses, or toxins that provide some immunity from diseases?

Drugs

Histamines

Vaccines

Antibiotics

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