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MCB 2010 Exam # 3 Study Guide.
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MCB 2010 Exam # 3 Study GuideWhat type of immunity results from vaccination?
A) innate immunity
B) naturally acquired active immunity
C) naturally acquired passive immunity
D) artificially acquired active immunity
E) artificially acquired passive immunity - ANS-D) artificially acquired active immunity
What type of immunity results from transfer of antibodies from one individual to a
susceptible individual by means of injection?
A) innate immunity
B) naturally acquired active immunity
C) naturally acquired passive immunity
D) artificially acquired active immunity
E) artificially acquired passive immunity - ANS-B) naturally acquired active immunity
What type of immunity results from recovery from mumps?
A) innate immunity
B) naturally acquired active immunity
C) naturally acquired passive immunity
D) artificially acquired active immunity
E) artificially acquired passive immunity - ANS-B) naturally acquired active immunity
Which of the following is the best definition of epitope?
A) specific regions on antigens that interact with T-cell receptors
B) specific regions on antigens that interact with MHC class molecules C) specific
regions on antigens that interact with haptens
D) specific regions on antigens that interact with antibodies
E) specific regions on antigens that interact with perforins - ANS-D) specific regions on
antigens that interact with antibodies
Newborns' immunity due to the transfer of antibodies across the placenta is an example
of
,A) innate immunity.
B) naturally acquired active immunity.
C) naturally acquired passive immunity.
D) artificially acquired active immunity.
E) artificially acquired passive immunity. - ANS-C) naturally acquired passive immunity.
Which of the following statements is NOT a possible outcome of antigen-antibody
reaction?
A) clonal deletion
B) activation of complement
C) opsonization
D) ADCC
E) agglutination - ANS-A) clonal deletion
Which of the following cells is NOT an APC?
A) dentritic cells
B) macrophages
C) mature B cells
D) natural killer cells
E) None of the answers is correct; all of these are APCs. - ANS-D) natural killer cells
When an antibody binds to a toxin, the resulting action is referred to as
A) agglutination.
B) opsonization.
C) ADCC.
D) apoptosis.
E) neutralization. - ANS-E) neutralization.
CD4+ T cells are activated by
A) interaction between CD4+ and MHC II.
B) interaction between TCRs and MHC II.
C) cytokines released by dendritic cells.
D) cytokines released by B cells.
E) complement. - ANS-A) interaction between CD4+ and MHC II.
Which of the following recognizes antigens displayed on host cells with MHC II?
,A) TC cell
B) B cell
C) TH cell
D) natural killer cell
E) basophil - ANS-C) TH cell
The specificity of an antibody is due to
A) its valence.
B) the H chains.
C) the L chains.
D) the constant portions of the H and L chains.
E) the variable portions of the H and L chains. - ANS-E) the variable portions of the H
and L chains.
Which of the following is NOT a characteristic of B cells?
A) They originate in bone marrow.
B) They have antibodies on their surfaces.
C) They are responsible for the memory response.
D) They are responsible for antibody formation.
E) They recognize antigens associated with MHC I. - ANS-E) They recognize antigens
associated with MHC I.
Which of the following is NOT a characteristic of cellular immunity?
A) The cells originate in bone marrow.
B) Cells are processed in the thymus gland.
C) It can inhibit the immune response.
D) B cells make antibodies.
E) T cells react with antigens. - ANS-D) B cells make antibodies
Plasma cells are activated by a(n)
A) antigen.
B) T cell.
C) B cell.
D) memory cell.
E) APC. - ANS-A) antigen.
, The antibodies found in mucus, saliva, and tears are
A) IgG.
B) IgM.
C) IgA.
D) IgD.
E) IgE. - ANS-C) IgA
The antibodies found almost entirely and only on the surface of B cells (not secreted
from them), and which always exist as monomers, are
A) IgG.
B) IgM.
C) IgA.
D) IgD.
E) IgE. - ANS-D) IgD.
The antibodies that can bind to large parasites are
A) IgG.
B) IgM.
C) IgA.
D) IgD.
E) IgE. - ANS-E) IgE.
In addition to IgG, the antibodies that can fix complement are
A) IgM.
B) IgA.
C) IgD.
D) IgE.
E) None of the answers is correct. - ANS-A) IgM.
Large antibodies that agglutinate antigens are
A) IgG.
B) IgM.
C) IgA.
D) IgD.
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