Antibodies
A) Are secreted by plasma cells
B) Protect against viruses by binding to them and presenting them to phagocytes
C) Protect against viruses by binding to them and neutralizing them
D) Activate complement
E) Are described by all of these choices
Correct Answer:
Verified
Q23: A subject with type O blood has
A)Erythrocytes
Q24: Antibodies are
A)Secreted by helper T cells
B)Cytokines
C)Immunoglobulins
D)Composed of
Q25: Autoimmune diseases
A)Include multiple sclerosis and AIDS
B)Can be
Q26: Helper T cells
A)Are activated by antigen presented
Q27: Graft rejection
A)Occurs primarily because donor macrophages recognize
Q29: Compared to undifferentiated B cells,
A)Plasma cells are
Q30: Cytotoxic T cells
A)Secrete perforin, which kills bacteria
Q31: Allergic reactions are the result of
A)Inappropriate responses
Q32: Systemic responses to infection
A)Are mediated by cytokines
Q33: Which of the following statements regarding the
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