Which of the following is NOT true of antibodies?
A) They have a constant region that binds to an antigen.
B) They are a Y-shaped protein molecule.
C) There are five classes of antibodies.
D) Antibodies can act by neutralization.
Correct Answer:
Verified
Q73: Antibodies bind to
A)foreign substances.
B)antigens.
C)bacteria.
D)All apply.
Q74: Which type of antibody is found in
Q75: Which of the following is NOT true
Q76: An antigen-presenting cell (APC)is a
A)red blood cell.
B)macrophage.
C)helper
Q77: Which of the following is NOT true
Q79: T cells
A)are activated by an antigen-presenting cell.
B)may
Q80: Which of the following is NOT true
Q81: A vaccine contains
A)antigens.
B)antibodies.
C)antihistamines.
D)lymphocytes.
Q82: Which of the following is NOT true
Q83: Which is an example of passive immunity?
A)An
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