Question 1

A Treg cell deficiency could result in

Accepted Answer

A)   autoimmunity.
B)   transplant rejection.
C)   increased number of bacterial infections.
D)   increased severity of bacterial infections.
E)   increased number of viral infections.F) C) and E)
G) A) and B)

Question 2

Which of the following is NOT a characteristic of cellular immunity?

Accepted Answer

A)   B cells make antibodies.
B)   The cells originate in bone marrow.
C)   T cells react with antigens.
D)   Cells are processed in the thymus gland.
E)   It can inhibit the immune response.F) C) and D)
G) A) and D)

Question 3

What type of immunity results from recovery from mumps?

Accepted Answer

A)   innate immunity
B)   naturally acquired active immunity
C)   naturally acquired passive immunity
D)   artificially acquired active immunity
E)   artificially acquired passive immunityF) B) and D)
G) C) and D)

Question 4

Newborns' immunity due to the transfer of antibodies across the placenta is an example of

Accepted Answer

A)   innate immunity.
B)   naturally acquired active immunity.
C)   naturally acquired passive immunity.
D)   artificially acquired active immunity.
E)   artificially acquired passive immunity.F) A) and E)
G) A) and D)

Question 5

The following events elicit an antibody response. What is the third step?

Accepted Answer

A)   TH cell produces cytokines.
B)   B cell is activated.
C)   Antigen- digest goes to surface of APC.
D)   TH cell recognizes antigen- digest and MHC II.
E)   APC phagocytizes antigen.F) B) and E)
G) A) and E)

Question 6

Figure 17.2
 
-In Figure 17.2, which areas are similar for all IgG antibodies?

Accepted Answer

A)   a and b
B)   a and c
C)   b and c
D)   c and d
E)   b and dF) C) and E)
G) A) and E)

Question 7

The most abundant class of antibodies in serum is

Accepted Answer

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

Question 8

What type of immunity results from vaccination?

Accepted Answer

A)   innate immunity
B)   naturally acquired active immunity
C)   naturally acquired passive immunity
D)   artificially acquired active immunity
E)   artificially acquired passive immunityF) B) and D)
G) C) and D)

Question 9

What type of immunity results from transfer of antibodies from one individual to a susceptible individual by means of injection?

Accepted Answer

A)   innate immunity
B)   naturally acquired active immunity
C)   naturally acquired passive immunity
D)   artificially acquired active immunity
E)   artificially acquired passive immunityF) A) and E)
G) A) and B)

Question 10

CD4+ T cells are activated by

Accepted Answer

A)   complement.
B)   cytokines released by dendritic cells.
C)   interaction between CD4+ and MHC II.
D)   interaction between TCRs and MHC II.
E)   cytokines released by B cells.F) A) and E)
G) A) and D)

Question 11

Figure 17.2
 
-In Figure 17.2, what can attach to a host cell?

Accepted Answer

A)   a and c
B)   b and c
C)   b
D)   a and d
E)   eF) C) and D)
G) A) and E)

Question 12

Memory cells do not require B cell receptors.

Accepted Answer

A) True 
 B)False

Question 13

The following events occur in cellular immunity. What is the third step?

Accepted Answer

A)   Dendritic cell takes up antigen.
B)   Antigen enters M cell.
C)   TH cells proliferate.
D)   TH cell produces cytokines.
E)   Antibodies are produced.F) A) and B)
G) A) and D)

Question 14

Figure 17.2
 
-In Figure 17.2, which areas are different for all IgM antibodies?

Accepted Answer

A)   a and b
B)   a and c
C)   b and c
D)   c and dE) All of the above
F) A) and D)

Question 15

Apoptosis results in significant leakage of cellular contents.

Accepted Answer

A) True 
 B)False

Question 16

Cytokines released by TH1 cells

Accepted Answer

A)   kill parasites.
B)   convert TH1 cells to TH2 cells.
C)   convert B cells to T cells.
D)   convert TH2 cells to TH1 cells.
E)   activate CD8+ cells to CTLs.F) B) and E)
G) B) and C)

Question 17

Which of the following bacterial components would most likely result in B cell stimulation by T- independent antigens?

Accepted Answer

A)   ribosome
B)   pili
C)   flagellum
D)   plasmid
E)   capsuleF) None of the above
G) A) and B)

Question 18

Plasma cells will eventually differentiate into memory cells.

Accepted Answer

A) True 
 B)False

Question 19

The production of interferons at an infection site is critical for chemotaxis.

Accepted Answer

A) True 
 B)False

Question 20

Large antibodies that agglutinate antigens are

Accepted Answer

A)   IgG.
B)   IgM.
C)   IgA.
D)   IgD.
E)   IgE.F) All of the above
G) None of the above

Exam 17: Adaptive Immunity: Specific Defenses of the Host

The following events occur in cellular immunity. What is the third step?

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Which of the following is NOT a characteristic of cellular immunity?

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What type of immunity results from vaccination?

Correct AnswerverifiedShow Answer

CD4+ T cells are activated by

Correct AnswerverifiedShow Answer

The most abundant class of antibodies in serum is

Correct AnswerverifiedShow Answer

A Treg cell deficiency could result in

Correct AnswerverifiedShow Answer

The production of interferons at an infection site is critical for chemotaxis.

Correct AnswerverifiedShow Answer

Memory cells do not require B cell receptors.

Correct AnswerverifiedShow Answer

What type of immunity results from recovery from mumps?

Correct AnswerverifiedShow Answer

The following events elicit an antibody response. What is the third step?

Correct AnswerverifiedShow Answer

Figure 17.2 -In Figure 17.2, what can attach to a host cell?

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Which of the following bacterial components would most likely result in B cell stimulation by T- independent antigens?

Correct AnswerverifiedShow Answer

Apoptosis results in significant leakage of cellular contents.

Correct AnswerverifiedShow Answer

Figure 17.2 -In Figure 17.2, which areas are different for all IgM antibodies?

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Cytokines released by TH1 cells

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Plasma cells will eventually differentiate into memory cells.

Correct AnswerverifiedShow Answer

Figure 17.2 -In Figure 17.2, which areas are similar for all IgG antibodies?

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Large antibodies that agglutinate antigens are

Correct AnswerverifiedShow Answer

Newborns' immunity due to the transfer of antibodies across the placenta is an example of

Correct AnswerverifiedShow Answer

What type of immunity results from transfer of antibodies from one individual to a susceptible individual by means of injection?

Correct AnswerverifiedShow Answer

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CD4⁺T cells are activated by

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A T_regcell deficiency could result in

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Cytokines released by T_H1 cells

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