Question 1

Which statement is NOT true of the T cells?

Accepted Answer

A)   T cells mature in the thymus.
B)   T cells carry receptor molecules on their cell surfaces.
C)   T cells change into plasma cells and produce antibodies when stimulated.
D)   T cells require presentation of antigens by macrophages before they are able to recognize the antigen.E) All of the above
F) A) and C)

Question 2

Which type of immunity is characterized by the production of receptors that will bind to specific antigens?

Accepted Answer

A)   adaptive
B)   innate
C)   both adaptive and innate
D)   neither adaptive or innateE) A) and B)
F) None of the above

Question 3

The cell responsible for producing a rapid antibody response against a foreign protein when it is encountered years after the first encounter is a

Accepted Answer

A)   memory B cell.
B)   memory T cell.
C)   killer T cell.
D)   plasma cell.E) B) and C)
F) All of the above

Question 4

Natural killer (NK)  cells that destroy virus-infected cells and cancer cells are

Accepted Answer

A)   suppressor T cells (TS) .
B)   large, granular lymphocytes.
C)   neutrophils.
D)   eosinophils.E) B) and C)
F) None of the above

Question 5

The clonal selection theory states that

Accepted Answer

A)   all B cells are exact clones of each other.
B)   all T cells are exact clones of each other.
C)   when a B or T cell is stimulated by encountering the correct antigen, it divides to form a clone of cells that will respond to the same antigen.
D)   when a B or T cell is stimulated by encountering the correct antibody, it divides to form a clone of cells that will respond to the same antibody.E) A) and C)
F) B) and C)

Question 6

Maturation of B cells occurs in the

Accepted Answer

A)   bone marrow.
B)   lymph nodes.
C)   spleen.
D)   thymus.
E)   Peyer's patches.F) B) and E)
G) A) and B)

Question 7

Rejection of transplanted tissue is treated with immunosuppressive drugs that prevent the activity of B cells.

Accepted Answer

A) True 
 B)False

Question 8

Immediate allergic responses are caused by ______ antibodies.

Accepted Answer

A)   IgA
B)   IgG
C)   IgE
D)   IgM
E)   IgDF) C) and D)
G) B) and C)

Question 9

Which of the following T cells are mismatched with their functions?

Accepted Answer

A)   Helper T cells - secrete cytokines to control immune responses
B)   Cytotoxic T cells - destroy non-self proteins
C)   Memory T cells - mediate apoptosis
D)   All of the choices are correctly matched with their functions.E) C) and D)
F) B) and D)

Question 10

Use the word bank to identify the labeled structures of the antibody in the diagram: antigen, antigen-binding site, variable region, constant region, light chain, heavy chain. Briefly describe the structure.

Accepted Answer

A - Variable region: regions of the ligh...

Question 11

Adaptive defenses in the body takes longer to become functional, since cells must be recruited to produce specific responses against the antigens.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following statements about B cells is true?

Accepted Answer

A)   B cells develop and mature in the bone marrow.
B)   B cells carry receptor molecules on their cell surfaces.
C)   B cells change into plasma cells after encountering an antigen and then produce antibodies.
D)   Some B cells become memory cells.
E)   All of these are true.F) None of the above
G) B) and D)

Question 13

Explain the underlying cause and consequences of an individual that develops severe combined immunodeficiency (SCID).

Accepted Answer

Primary immunodeficiencies are genetic i...

Question 14

Which of the following is not a function of the lymphatic system?

Accepted Answer

A)   Produce and distribute lymphocytes.
B)   Absorb excess tissue fluid and return it to the blood stream.
C)   Absorb fats and transport them to the bloodstream.
D)   All of these are functions of the lymphatic system.E) All of the above
F) C) and D)

Question 15

Which antibody class is most prevalent in the bloodstream?

Accepted Answer

A)   IgA
B)   IgG
C)   IgE
D)   IgM
E)   IgDF) C) and E)
G) A) and B)

Question 16

Which kind of T cells regulate the immune response by producing stimulatory lymphokines?

Accepted Answer

A)   memory T cells (TM) 
B)   suppressor T cells (TS) 
C)   cytotoxic T cells (T
C)  
D)   helper T cells (TH) E) C) and D)
F) A) and B)

Question 17

Most of the lymph fluid is returned to the bloodstream through the thoracic duct to the

Accepted Answer

A)   right ventricle of the heart.
B)   right atrium of the heart.
C)   left atrium of the heart.
D)   right subclavian vein.
E)   left subclavian vein.F) None of the above
G) A) and B)

Question 18

Edward Jenner promoted the use of cowpox infection that was very similar to the more dangerous smallpox, as a vaccination to provide patients immunity from future smallpox epidemics. This is an example of

Accepted Answer

A)   passive immunity.
B)   active immunity.
C)   an inflammatory response that decreased the IgE production and increased T cells.
D)   developing high levels of complement.
E)   developing high levels of interferon although Jenner did not realize these diseases were viral.F) C) and D)
G) None of the above

Question 19

What are the potential symptoms of a person who is suffering from anaphylactic shock?

Accepted Answer

A)   The smooth muscle of the bronchi may constrict.
B)   An increased dilation of the capillaries that can lower the blood pressure.
C)   The release of a massive amount of histamine within the blood stream.
D)   All of the answer choices are potential symptoms of a person who is suffering from anaphylactic shock.E) A) and B)
F) A) and C)

Question 20

Anaphylactic shock

Accepted Answer

A)   is characterized by a sudden and life-threatening drop in blood pressure.
B)   occurs when the allergen has entered the bloodstream.
C)   is an immediate allergic reaction.
D)   All of these are true.
E)   None of these are true.F) B) and C)
G) A) and E)

Exam 33: The Lymphatic and Immune Systems

Which kind of T cells regulate the immune response by producing stimulatory lymphokines?

Correct AnswerverifiedShow Answer

Rejection of transplanted tissue is treated with immunosuppressive drugs that prevent the activity of B cells.

Correct AnswerverifiedShow Answer

Which antibody class is most prevalent in the bloodstream?

Correct AnswerverifiedShow Answer

Anaphylactic shock

Correct AnswerverifiedShow Answer

Edward Jenner promoted the use of cowpox infection that was very similar to the more dangerous smallpox, as a vaccination to provide patients immunity from future smallpox epidemics. This is an example of

Correct AnswerverifiedShow Answer

Immediate allergic responses are caused by ______ antibodies.

Correct AnswerverifiedShow Answer

Which of the following is not a function of the lymphatic system?

Correct AnswerverifiedShow Answer

Use the word bank to identify the labeled structures of the antibody in the diagram: antigen, antigen-binding site, variable region, constant region, light chain, heavy chain. Briefly describe the structure.

Correct AnswerverifiedA - Variable region: regions of the ligh...View AnswerShow Answer

Most of the lymph fluid is returned to the bloodstream through the thoracic duct to the

Correct AnswerverifiedShow Answer

What are the potential symptoms of a person who is suffering from anaphylactic shock?

Correct AnswerverifiedShow Answer

Which of the following statements about B cells is true?

Correct AnswerverifiedShow Answer

Explain the underlying cause and consequences of an individual that develops severe combined immunodeficiency (SCID).

Correct AnswerverifiedPrimary immunodeficiencies are genetic i...View AnswerShow Answer

Which statement is NOT true of the T cells?

Correct AnswerverifiedShow Answer

Natural killer (NK) cells that destroy virus-infected cells and cancer cells are

Correct AnswerverifiedShow Answer

Which type of immunity is characterized by the production of receptors that will bind to specific antigens?

Correct AnswerverifiedShow Answer

The clonal selection theory states that

Correct AnswerverifiedShow Answer

Adaptive defenses in the body takes longer to become functional, since cells must be recruited to produce specific responses against the antigens.

Correct AnswerverifiedShow Answer

Maturation of B cells occurs in the

Correct AnswerverifiedShow Answer

The cell responsible for producing a rapid antibody response against a foreign protein when it is encountered years after the first encounter is a

Correct AnswerverifiedShow Answer

Which of the following T cells are mismatched with their functions?

Correct AnswerverifiedShow Answer

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A - Variable region: regions of the ligh...
View Answer

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Primary immunodeficiencies are genetic i...
View Answer

Correct Answer
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