Question 1

Antigen presenting cells _______.

Accepted Answer

A)   include dendritic cells
B)   include macrophages
C)   engulf and modify antigen to be more immunogenic
D)   hold and present processed antigen on their cell membrane surface
E)   All of these choices are correct.F) D) and E)
G) A) and E)

Question 2

During which response to the antigen do we display a latent period of no secretory antibody synthesis?

Accepted Answer

A)   Primary
B)   Secondary
C)   Tertiary
D)   QuaternaryE) None of the above
F) A) and B)

Question 3

Antigens that elicit allergic reactions are called _______.

Accepted Answer

A)   superantigens
B)   autoantigens
C)   heterophilic antigens
D)   allergensE) A) and B)
F) B) and D)

Question 4

As an adult who never developed chickenpox infection as a child, you elect to receive the protective vaccine against this pathogen at the age of 35. This vaccine will stimulate _______.

Accepted Answer

A)   a primary immune response
B)   a secondary immune response
C)   latency
D)   an anamnestic responseE) B) and C)
F) A) and B)

Question 5

Properties of effective antigens include all of the following except _______.

Accepted Answer

A)   they are foreign to the immune system
B)   they have molecular complexity
C)   they are large molecules with a minimum molecular weight of 1,000
D)   they are large polymers made up of repeating subunits
E)   they are cells or large, complex moleculesF) D) and E)
G) None of the above

Question 6

Which of the following statements does not represent the role of a cell marker in the third line of defense?

Accepted Answer

A)   They receive and transmit signals to coordinate the immune response.
B)   They are attachment sites for foreign molecules.
C)   They serve as recognition factors for self and nonself molecules.
D)   They serve as transcription factors to initiate antibody production.E) A) and B)
F) C) and D)

Question 7

The structural and functional differences that distinguish immunoglobulin isotypes are due to variations associated with their Fc fragments.

Accepted Answer

A) True 
 B)False

Question 8

The array of potential antibodies to the variety of possible antigens is amazing. Which statement explains this development?

Accepted Answer

A)   There is a shuﬄing of genes that code for self markers as well as nonself markers, mixing them together and producing reactive lymphocytes to those markers.
B)   Mutations in the antibody gene occur within the activated B cells, since they meet the antigen.
C)   The existing antibody molecules change their shapes, allowing them to ﬁt with a large number of antigens.
D)   Recombination of genes coding for the variable regions of immunoglobulins occurs during the developmental stage of lymphocyte production.E) All of the above
F) C) and D)

Question 9

All nucleated cells contain _______.

Accepted Answer

A)   IgD receptors
B)   class II MHC
C)   IgE receptors
D)   secretory antibodies
E)   class I MHCF) All of the above
G) B) and C)

Question 10

The immunoglobulin class that has a dimer form found in mucus, saliva, colostrum, and other body secretions is ______.

Accepted Answer

A)   IgA
B)   IgM
C)   IgG
D)   IgD
E)   IgEF) D) and E)
G) A) and E)

Question 11

Class II MHC genes code for _______.

Accepted Answer

A)   certain secreted complement components
B)   self receptors recognized by T lymphocytes
C)   all HLA antigens
D)   receptors located primarily on macrophages and B cells
E)   All of these choices are correct.F) A) and B)
G) A) and C)

Question 12

Antibody molecules circulate in lymph, blood, and tissue ﬂuids.

Accepted Answer

A) True 
 B)False

Exam 15: Host Defenses Ii: Specific Immunity and Immunization

Which of the following statements does not represent the role of a cell marker in the third line of defense?

Correct Answer
verified

The array of potential antibodies to the variety of possible antigens is amazing. Which statement explains this development?

Correct Answer
verified

Properties of effective antigens include all of the following except _______.

Correct Answer
verified

As an adult who never developed chickenpox infection as a child, you elect to receive the protective vaccine against this pathogen at the age of 35. This vaccine will stimulate _______.

Correct Answer
verified

Class II MHC genes code for _______.

Correct Answer
verified

Antigens that elicit allergic reactions are called _______.

Correct Answer
verified

All nucleated cells contain _______.

Correct Answer
verified

The structural and functional differences that distinguish immunoglobulin isotypes are due to variations associated with their Fc fragments.

Correct Answer
verified

Antigen presenting cells _______.

Correct Answer
verified

The immunoglobulin class that has a dimer form found in mucus, saliva, colostrum, and other body secretions is ______.

Correct Answer
verified

Antibody molecules circulate in lymph, blood, and tissue ﬂuids.

Correct Answer
verified

During which response to the antigen do we display a latent period of no secretory antibody synthesis?

Correct Answer
verified

Exam 15: Host Defenses Ii: Specific Immunity and Immunization

Which of the following statements does not represent the role of a cell marker in the third line of defense?

Correct AnswerverifiedShow Answer

The array of potential antibodies to the variety of possible antigens is amazing. Which statement explains this development?

Correct AnswerverifiedShow Answer

Properties of effective antigens include all of the following except _______.

Correct AnswerverifiedShow Answer

As an adult who never developed chickenpox infection as a child, you elect to receive the protective vaccine against this pathogen at the age of 35. This vaccine will stimulate _______.

Correct AnswerverifiedShow Answer

Class II MHC genes code for _______.

Correct AnswerverifiedShow Answer

Antigens that elicit allergic reactions are called _______.

Correct AnswerverifiedShow Answer

All nucleated cells contain _______.

Correct AnswerverifiedShow Answer

The structural and functional differences that distinguish immunoglobulin isotypes are due to variations associated with their Fc fragments.

Correct AnswerverifiedShow Answer

Antigen presenting cells _______.

Correct AnswerverifiedShow Answer

The immunoglobulin class that has a dimer form found in mucus, saliva, colostrum, and other body secretions is ______.

Correct AnswerverifiedShow Answer

Antibody molecules circulate in lymph, blood, and tissue ﬂuids.

Correct AnswerverifiedShow Answer

During which response to the antigen do we display a latent period of no secretory antibody synthesis?

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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