Immune Response in biochemistry
Polysaccharides on the surface of infecting microorganisms can also activate complement directly in the absence of

antigen via the alternative pathway
antibody via metabolic pathway
None of these
antibody via the alternative pathway

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Immune Response in biochemistry
Immunogenicity

is usually a property of self antigens such as eye tissue
is not a property of antibodies
is not a property of haptens
depends on the ability of the native antigen to be presented by MHC

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Immune Response in biochemistry
Immunological memory is due to

long lived B cells that secrete a specific antigen
short lived helper T cells that signal macrophage to divide
long lived B cells that secrete a specific antibody
short lived macrophage that can recognize specific pathogens

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