B cells are more effective than macrophages in presenting antigens to activate T cells when
A) macrophages are in short supply.
B) antigen concentrations are high.
C) antigen concentrations are low.
D) none of the choices
Correct Answer:
Verified
Q26: Superantigens exert their damaging effects by
A)forming harmful
Q27: Lipopolysaccharides are a common class of T-dependent
Q27: In humans,the antigen-presenting cells include all of
Q28: Superantigens cause
A)specific activation of phagocytic cells.
B)stimulation of
Q29: The T cell receptor is comprised of
A)alpha
Q32: One plasma cell can synthesize more than
Q32: The variable domain of antibody molecules
A)interacts with
Q33: During activation of a T cell,the cytokine
Q34: T cells are so named because they
Q35: Which type(s)of antigen-presenting cell can activate T
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