Question 1

Which immunoglobulin is present in blood, saliva, breast milk, and respiratory secretions?

Accepted Answer

A)  IgA
B)  IgE
C)  IgG
D)  IgME) A) and B)
F) C) and D)

Question 2

Cytokines are vital to a cell's ability to do which function?

Accepted Answer

A)  Excrete
B)  Reproduce
C)  Metabolize
D)  CommunicateE) All of the above
F) C) and D)

Question 3

Which is an example of a bacterial toxin that has been inactivated but still retains its immunogenicity to protect the person? (Select all that apply.)

Accepted Answer

A)  Poliomyelitis
B)  Measles
C)  Tetanus
D)  Gonorrhea
E)  DiphtheriaF) B) and D)
G) B) and C)

Question 4

Which statements are true concerning the humoral immune response? (Select all that apply.)

Accepted Answer

A)  The humoral immune response is divided into major and minor phases.
B)  The response has IgG and IgM produced during each of its phrases.
C)  It has a greater presence of IgG than IgM in one of its phases.
D)  The humoral immune response is produced in reaction to the presence of an antigen.
E)  Phases differ in their response time as a result of the effect of memory cells.F) C) and E)
G) B) and C)

Question 5

Which T cell controls or limits the immune response to protect the host's own tissues against an autoimmune response?

Accepted Answer

A)  Cytotoxic T cells
B)  Th1 cells
C)  Th2 cells
D)  Regulatory T (Treg)  cellsE) B) and C)
F) None of the above

Question 6

How do antibodies protect the host from bacterial toxins?

Accepted Answer

A)  Lysing the cell membrane of the toxins
B)  Binding to the toxins to neutralize their biologic effects
C)  Inhibiting the synthesis of DNA proteins needed for growth
D)  Interfering with the DNA enzyme needed for replicationE) A) and B)
F) C) and D)

Question 7

Which antibody initially indicates a typical primary immune response?

Accepted Answer

A)  IgG
B)  IgM
C)  IgA
D)  IgEE) None of the above
F) A) and D)

Question 8

Antibodies that are associated with mucosal immune system, such as immunoglobulins, function to prevent which type of infections?

Accepted Answer

A)  Infections that attack the respiratory system
B)  Infections that tend to be chronic in nature
C)  Infections likely to be resistant to antibiotics
D)  Infections that focus on epithelial surfaces of the bodyE) All of the above
F) C) and D)

Question 9

Which type of immunity is produced by an individual after either natural exposure to the antigen or after immunization against the antigen?

Accepted Answer

A)  Passive-acquired immunity
B)  Active-acquired immunity
C)  Passive-innate immunity
D)  Active-innate immunityE) A) and D)
F) A) and C)

Question 10

Which statement is true regarding maternal antibodies provided to the neonate?

Accepted Answer

A)  The antibodies enter into the fetal circulation by means of active transport.
B)  The antibodies are transferred to the fetus via the lymphatic system.
C)  The antibodies are directly related to the mother's nutritional intake.
D)  The antibodies reach protective levels after approximately 6 months of age.E) A) and D)
F) A) and C) A

Question 11

Th2 cells produce IL-4 and suppress which cells?

Accepted Answer

A)  B lymphocytes
B)  Cytotoxic T lymphocytes
C)  Th1 cells
D)  Memory T lymphocytesE) A) and B)
F) A) and C) C

Question 12

Which is an example of an endogenous antigen?

Accepted Answer

A)  Yeast
B)  Cancer cells
C)  Bacteria
D)  FungusE) A) and B)
F) None of the above

Question 13

What type of immunity is produced when an immunoglobulin crosses the placenta?

Accepted Answer

A)  Passive-acquired immunity
B)  Active-acquired immunity
C)  Passive-innate immunity
D)  Active-innate immunityE) C) and D)
F) A) and C)

Question 14

Vaccinations are able to provide protection against certain microorganisms because of what?

Accepted Answer

A)  Strong response from IgM
B)  Level of protection provided by IgG
C)  Memory cells for IgE
D)  Rapid response from IgAE) A) and B)
F) C) and D)

Question 15

Where are antibodies produced?

Accepted Answer

A)  Helper T lymphocytes
B)  Thymus gland
C)  Plasma cells
D)  Bone marrowE) B) and C)
F) A) and B) C

Question 16

What is the term for the process during which lymphoid stem cells migrate and change into either immunocompetent T cells or immunocompetent B cells?

Accepted Answer

A)  Clonal diversity
B)  Clonal differentiation
C)  Clonal selection
D)  Clonal competenceE) All of the above
F) B) and C)

Question 17

CD4 is a characteristic surface marker and a result of which of these? (Select all that apply.)

Accepted Answer

A)  Activity in the primary lymphoid organs
B)  Process of cellular differentiation
C)  Alterations to T cells
D)  Changes to B cells
E)  Clonal selectionF) C) and E)
G) All of the above

Question 18

The functions of the major histocompatibility complex (MHC)  and CD1 molecules are alike because both do what?

Accepted Answer

A)  Are antigen-presenting molecules
B)  Bind antigens to antibodies
C)  Secrete interleukins during the immune process
D)  Are capable of activating cytotoxic T lymphocytesE) A) and B)
F) C) and D)

Question 19

Evaluation of umbilical cord blood can confirm that which immunoglobulin level is near adult levels?

Accepted Answer

A)  IgA
B)  IgG
C)  IgM
D)  IgEE) A) and D)
F) C) and D)

Question 20

The generation of clonal diversity occurs primarily during which phase of life?

Accepted Answer

A)  Fetal
B)  Neonatal
C)  Infancy
D)  PubertyE) B) and C)
F) A) and D)

Exam 8: Adaptive Immunity

Which immunoglobulin is present in blood, saliva, breast milk, and respiratory secretions?

Correct AnswerverifiedShow Answer

Cytokines are vital to a cell's ability to do which function?

Correct AnswerverifiedShow Answer

Which is an example of a bacterial toxin that has been inactivated but still retains its immunogenicity to protect the person? (Select all that apply.)

Correct AnswerverifiedShow Answer

Which statements are true concerning the humoral immune response? (Select all that apply.)

Correct AnswerverifiedShow Answer

Which T cell controls or limits the immune response to protect the host's own tissues against an autoimmune response?

Correct AnswerverifiedShow Answer

How do antibodies protect the host from bacterial toxins?

Correct AnswerverifiedShow Answer

Which antibody initially indicates a typical primary immune response?

Correct AnswerverifiedShow Answer

Antibodies that are associated with mucosal immune system, such as immunoglobulins, function to prevent which type of infections?

Correct AnswerverifiedShow Answer

Which type of immunity is produced by an individual after either natural exposure to the antigen or after immunization against the antigen?

Correct AnswerverifiedShow Answer

Which statement is true regarding maternal antibodies provided to the neonate?

Correct AnswerverifiedA

Th2 cells produce IL-4 and suppress which cells?

Correct AnswerverifiedC

Which is an example of an endogenous antigen?

Correct AnswerverifiedShow Answer

What type of immunity is produced when an immunoglobulin crosses the placenta?

Correct AnswerverifiedShow Answer

Vaccinations are able to provide protection against certain microorganisms because of what?

Correct AnswerverifiedShow Answer

Where are antibodies produced?

Correct AnswerverifiedC

What is the term for the process during which lymphoid stem cells migrate and change into either immunocompetent T cells or immunocompetent B cells?

Correct AnswerverifiedShow Answer

CD4 is a characteristic surface marker and a result of which of these? (Select all that apply.)

Correct AnswerverifiedShow Answer

The functions of the major histocompatibility complex (MHC) and CD1 molecules are alike because both do what?

Correct AnswerverifiedShow Answer

Evaluation of umbilical cord blood can confirm that which immunoglobulin level is near adult levels?

Correct AnswerverifiedShow Answer

The generation of clonal diversity occurs primarily during which phase of life?

Correct AnswerverifiedShow Answer

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A

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C

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C

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