Question 1

The structural features common to all antibody classes are

Accepted Answer

A)   two pairs of a heavy chain and a light chain which form an antigen binding site.
B)   a stem formed of a light chain and a heavy chain.
C)   an antigen binding site formed by two light chains.
D)   an antigen binding site formed by a single heavy chain.
E)   a heavy chain paired with a light chain.F) None of the above
G) All of the above

Question 2

Vaccination triggers an immune response which produces immunity.

Accepted Answer

A)   natural passive
B)   artificial active
C)   artificial passive
D)   natural active
E)   both active and passiveF) B) and C)
G) A) and B)

Question 3

The epitope specificity of a T lymphocyte is determined by its (MHC/BCR/TCR).

Accepted Answer

The answer of The epitope specificity of a T lymphocyte...

Question 4

A variety of molecular components of the adaptive immune system bind epitopes (antigenic determinants). Compare and contrast the binding of epitopes by antibody molecules, T cell receptors (TCRs), and MHC molecules, and describe the consequences of the different interactions.

Accepted Answer

Antibody molecules produced by B lymphoc...

Question 5

The protozoan that causes malaria is an intracellular parasite of red blood cells (RBCs) . An adaptive immune response to this parasite is problematic because

Accepted Answer

A)   RBCs never enter lymphoid tissue.
B)   RBCs normally produce cytokines necessary for adaptive immune response, which this infection prevents.
C)   complement cannot effectively destroy RBCs.
D)   red blood cells do not produce MHC and therefore do not display the fact that they have been infected by presenting antigen.
E)   the parasite damages leukocytes along with RBCs.F) C) and D)
G) B) and E) D

Question 6

Each B lymphocyte develops a unique BCR variable region by random assembly of immunoglobulin gene fragments.

Accepted Answer

A) True 
 B)False

Question 7

Secretory IgA antibodies are unique because they

Accepted Answer

A)   have unique light chains.
B)   are present in the plasma.
C)   are present in lymph nodes.
D)   are Y-shaped molecules.
E)   are connected with J chains and short polypeptides to form dimers.F) None of the above
G) B) and D)

Question 8

Which of the following best describes IgM antibodies?

Accepted Answer

A)   They cause basophils and eosinophils to degranulate.
B)   They interact with phagocytes and NK cells.
C)   They can cross the placenta to provide passive immunity.
D)   They are the most common type of antibody in the blood during the initial phases of an immune response.
E)   They are the antibody class found in body secretions.F) D) and E)
G) B) and C) D

Question 9

The type of immunoglobulin illustrated here is

Accepted Answer

A)   IgM.
B)   IgD.
C)   IgA.
D)   IgE.
E)   IgG.F) A) and B)
G) A) and C)

Question 10

Compare and contrast clonal deletion and clonal selection of B lymphocytes.

Accepted Answer

Both clonal deletion and clonal selectio...

Question 11

Which of the following cytokines act as a signal between leukocytes?

Accepted Answer

A)   chemokines
B)   growth factors
C)   interleukins
D)   tumor necrosis factors
E)   interferonsF) B) and D)
G) D) and E)

Question 12

Large accumulations of unactivated self-tolerant lymphocytes conducting surveillance for specific antigenic determinants are found in

Accepted Answer

A)   lymph nodes.
B)   the MALT.
C)   the thymus.
D)   the MALT and lymph nodes.
E)   the MALT, lymph nodes, and thymus.F) C) and D)
G) All of the above

Question 13

Which of the following recognizes and binds to MHC II antigens and helps stabilize the binding of epitopes to T cell receptors?

Accepted Answer

A)   CD26
B)   CD4
C)   CCR5
D)   MHC I
E)   CCR3F) B) and D)
G) All of the above

Question 14

Professional antigen-presenting cells (APCs) include B cells, macrophages, and (dendritic/plasma/T) cells.

Accepted Answer

The answer of Professional antigen-presenting cells (APCs) include B cells,...

Question 15

You step on something in the yard resulting in a puncture wound that does not bleed freely. Antigens from any microbes that entered the wound will most likely end up in the

Accepted Answer

A)   lymph nodes of the armpit (axilla) .
B)   spleen.
C)   lymph nodes of the groin (inguinal) .
D)   lymph nodes of the neck (cervical) .
E)   appendix.F) A) and D)
G) A) and C)

Question 16

Describe the mechanisms of action of antibodies.

Accepted Answer

Antibodies act against foreign antigens ...

Question 17

Which of the following components of antigen processing is MISMATCHED?

Accepted Answer

A)   endogenous antigen: MHC II
B)   exogenous antigen: MHC II
C)   phagosome: exogenous antigen
D)   endoplasmic reticulum: endogenous antigen
E)   endogengous antigen: MHC IF) C) and D)
G) A) and E)

Question 18

A sick child may have influenza or RSV. These virus infections have different treatment options, so the physician requests antibody titer tests. The results are as follows: anti-influenza antibodies are primarily IgM, and anti-RSV antibodies are all IgA and IgG. Which of the following is the most appropriate interpretation?

Accepted Answer

A)   The child has a current RSV infection and was previously exposed to influenza.
B)   The child has neither influenza nor RSV.
C)   The child currently has influenza and has previously been exposed to RSV.
D)   The child has concurrent influenza and RSV infections.
E)   The results do not provide sufficient data to draw a conclusion.F) A) and E)
G) C) and E)

Question 19

In what way is the lymphatic system similar to the circulatory system?

Accepted Answer

A)   The composition of lymphatic fluid is similar to that of blood plasma.
B)   The same types of cells flow through both systems.
C)   The lymphatic system is also a circulatory system.
D)   The lymph nodes can contract to push fluid through the system.
E)   Fluid flows from larger vessels to capillaries.F) A) and B)
G) A) and C) A

Question 20

Which of the following function(s)  in agglutination?

Accepted Answer

A)   IgE antibodies
B)   IgD antibodies
C)   IgA antibodies
D)   IgG antibodies
E)   IgA and IgG antibodiesF) A) and C)
G) C) and D)

Exam 16: Adaptive Immunity

The structural features common to all antibody classes are

Correct Answer
verified

Vaccination triggers an immune response which produces immunity.

Correct Answer
verified

The epitope specificity of a T lymphocyte is determined by its (MHC/BCR/TCR).

Correct Answer
verified

A variety of molecular components of the adaptive immune system bind epitopes (antigenic determinants). Compare and contrast the binding of epitopes by antibody molecules, T cell receptors (TCRs), and MHC molecules, and describe the consequences of the different interactions.

Correct Answer
verified
Antibody molecules produced by B lymphoc...
View Answer

The protozoan that causes malaria is an intracellular parasite of red blood cells (RBCs) . An adaptive immune response to this parasite is problematic because

Correct Answer
verified
D

Each B lymphocyte develops a unique BCR variable region by random assembly of immunoglobulin gene fragments.

Correct Answer
verified

Secretory IgA antibodies are unique because they

Correct Answer
verified

Which of the following best describes IgM antibodies?

Correct Answer
verified
D

The type of immunoglobulin illustrated here is

Correct Answer
verified

Compare and contrast clonal deletion and clonal selection of B lymphocytes.

Correct Answer
verified
Both clonal deletion and clonal selectio...
View Answer

Which of the following cytokines act as a signal between leukocytes?

Correct Answer
verified

Large accumulations of unactivated self-tolerant lymphocytes conducting surveillance for specific antigenic determinants are found in

Correct Answer
verified

Which of the following recognizes and binds to MHC II antigens and helps stabilize the binding of epitopes to T cell receptors?

Correct Answer
verified

Professional antigen-presenting cells (APCs) include B cells, macrophages, and (dendritic/plasma/T) cells.

Correct Answer
verified

You step on something in the yard resulting in a puncture wound that does not bleed freely. Antigens from any microbes that entered the wound will most likely end up in the

Correct Answer
verified

Describe the mechanisms of action of antibodies.

Correct Answer
verified
Antibodies act against foreign antigens ...
View Answer

Which of the following components of antigen processing is MISMATCHED?

Correct Answer
verified

Correct Answer
verified

In what way is the lymphatic system similar to the circulatory system?

Correct Answer
verified
A

Which of the following function(s) in agglutination?

Correct Answer
verified

Exam 16: Adaptive Immunity

The structural features common to all antibody classes are

Correct AnswerverifiedShow Answer

Vaccination triggers an immune response which produces immunity.

Correct AnswerverifiedShow Answer

The epitope specificity of a T lymphocyte is determined by its (MHC/BCR/TCR).

Correct AnswerverifiedShow Answer

A variety of molecular components of the adaptive immune system bind epitopes (antigenic determinants). Compare and contrast the binding of epitopes by antibody molecules, T cell receptors (TCRs), and MHC molecules, and describe the consequences of the different interactions.

Correct AnswerverifiedAntibody molecules produced by B lymphoc...View AnswerShow Answer

The protozoan that causes malaria is an intracellular parasite of red blood cells (RBCs) . An adaptive immune response to this parasite is problematic because

Correct AnswerverifiedD

Each B lymphocyte develops a unique BCR variable region by random assembly of immunoglobulin gene fragments.

Correct AnswerverifiedShow Answer

Secretory IgA antibodies are unique because they

Correct AnswerverifiedShow Answer

Which of the following best describes IgM antibodies?

Correct AnswerverifiedD

The type of immunoglobulin illustrated here is

Correct AnswerverifiedShow Answer

Compare and contrast clonal deletion and clonal selection of B lymphocytes.

Correct AnswerverifiedBoth clonal deletion and clonal selectio...View AnswerShow Answer

Which of the following cytokines act as a signal between leukocytes?

Correct AnswerverifiedShow Answer

Large accumulations of unactivated self-tolerant lymphocytes conducting surveillance for specific antigenic determinants are found in

Correct AnswerverifiedShow Answer

Which of the following recognizes and binds to MHC II antigens and helps stabilize the binding of epitopes to T cell receptors?

Correct AnswerverifiedShow Answer

Professional antigen-presenting cells (APCs) include B cells, macrophages, and (dendritic/plasma/T) cells.

Correct AnswerverifiedShow Answer

You step on something in the yard resulting in a puncture wound that does not bleed freely. Antigens from any microbes that entered the wound will most likely end up in the

Correct AnswerverifiedShow Answer

Describe the mechanisms of action of antibodies.

Correct AnswerverifiedAntibodies act against foreign antigens ...View AnswerShow Answer

Which of the following components of antigen processing is MISMATCHED?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

In what way is the lymphatic system similar to the circulatory system?

Correct AnswerverifiedA

Which of the following function(s) in agglutination?

Correct AnswerverifiedShow Answer

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Antibody molecules produced by B lymphoc...
View Answer

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D

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D

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verified
Both clonal deletion and clonal selectio...
View Answer

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Correct Answer
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Correct Answer
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Correct Answer
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Antibodies act against foreign antigens ...
View Answer

Correct Answer
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Correct Answer
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A

Correct Answer
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