Question 1

Which of the following characterize B cells?

Accepted Answer

A)  They function in antibody mediated immunity against bacteria.
B)  They directly recognize antigens and undergo clonal selection.
C)  They are manufactured and mature in the bone marrow.
D)  All of the choices characterize B cells.
E)  None of the choices characterize B cells.F) C) and D)
G) D) and E)

Question 2

Cytokinines

Accepted Answer

A)  are soluble proteins that act as signaling molecules to stimulate white blood cells.
B)  are secreted by macrophages to stimulate the replication of cancer cells.
C)  repel neutrophils from the site of infection.
D)  inhibit production of T and B cells.E) A) and B)
F) A) and C)

Question 3

Nonspecific defenses against disease include all of the following EXCEPT

Accepted Answer

A)  skin and mucous membranes.
B)  natural killer cells.
C)  inflammatory reaction.
D)  antibodies.
E)  complement.F) A) and C)
G) B) and E)

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

As lymph passes through the sinuses of lymph nodes,it is filtered by ______ that engulf debris and pathogens.

Accepted Answer

A)  T cells
B)  B cells
C)  neutrophils
D)  macrophagesE) C) and D)
F) B) and D)

Question 6

A failure in the lymphatic valves located in the left subclavian vein may result in

Accepted Answer

A)  edema in the left arm and left ventral chest wall.
B)  a decrease of fluid in the left arm and left ventral chest wall.
C)  an overproduction of T cells within the thymus.
D)  an increase in the amount of lipoproteins in the bloodstream.E) A) and D)
F) A) and B)

Question 7

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) B) and C)
F) A) and D)

Question 8

Which kind of T cell is most important in the removal of cancer cells or virally infected cells from the body?

Accepted Answer

A)  helper T cells
B)  cytotoxic T cells
C)  suppressor T cells
D)  memory T cellsE) A) and C)
F) B) and C)

Question 9

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) A) and B)
F) C) and D)

Question 10

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 D)
F) None of the above

Question 11

Complement and interferon are specific kinds of antibodies.

Accepted Answer

A) True 
 B)False

Question 12

Maturation of T cells occurs in the

Accepted Answer

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

Question 13

The reason that cellular slime molds are being used to study the evolution of the immune system is because:

Accepted Answer

A)  cells within the multicellular slug will perform specialized function similar to that of neutrophils and macrophages.
B)  cells within the single-celled slug will perform specialized function similar to that of neutrophils and macrophages.
C)  cells within the multicellular slug will perform specialized function similar to that of red blood cells.
D)  the slug is capable of preventing pathogens from being able to infect it.
E)  none of these reasons are why cellular slime molds are being used for studying the evolution of the immune system.F) C) and D)
G) A) and B)

Question 14

_____________ are of the same type since they are derived from the same B cell and are against a specific antigen.

Accepted Answer

A)  Monoclonal antibodies
B)  Agglutination factors
C)  Autoimmune agents
D)  Immunosuppressant agents
E)  Allergen antibodiesF) All of the above
G) A) and B)

Question 15

Which of the following pathogens would our innate immunity help protect us against?

Accepted Answer

A)  viruses
B)  bacteria
C)  fungi
D)  Innate immunity would defend us against all of these pathogens.E) C) and D)
F) None of the above

Question 16

The lymphoid organ in which B lymphocytes are produced is the

Accepted Answer

A)  red bone marrow.
B)  lymph nodes.
C)  spleen.
D)  thymus gland.
E)  All of these produce B lymphocytes.F) C) and E)
G) C) and D)

Question 17

Which of the following autoimmune diseases can potentially be avoided by preventing or completely curing a Streptococcus infection?

Accepted Answer

A)  Rheumatic fever
B)  Rheumatoid arthritis
C)  Systemic lupus
D)  HIVE) A) and B)
F) C) and D)

Question 18

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 the above are true.
E)  None of these are true.F) C) and D)
G) A) and B)

Question 19

Immediate allergic responses are caused by ______ antibodies.

Accepted Answer

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

Question 20

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) A) and C)
F) A) and D)

Exam 33: The Lymphatic and Immune Systems

As lymph passes through the sinuses of lymph nodes,it is filtered by ______ that engulf debris and pathogens.

Correct AnswerverifiedShow Answer

The reason that cellular slime molds are being used to study the evolution of the immune system is because:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Nonspecific defenses against disease include all of the following EXCEPT

Correct AnswerverifiedShow Answer

A failure in the lymphatic valves located in the left subclavian vein may result in

Correct AnswerverifiedShow Answer

Which of the following pathogens would our innate immunity help protect us against?

Correct AnswerverifiedShow Answer

Immediate allergic responses are caused by ______ antibodies.

Correct AnswerverifiedShow Answer

Anaphylactic shock

Correct AnswerverifiedShow Answer

Complement and interferon are specific kinds of antibodies.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which statement is NOT true of the T cells?

Correct AnswerverifiedShow Answer

_____________ are of the same type since they are derived from the same B cell and are against a specific antigen.

Correct AnswerverifiedShow Answer

The clonal selection theory states that

Correct AnswerverifiedShow Answer

Cytokinines

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Which of the following autoimmune diseases can potentially be avoided by preventing or completely curing a Streptococcus infection?

Correct AnswerverifiedShow Answer

Maturation of T cells occurs in the

Correct AnswerverifiedShow Answer

Which of the following characterize B cells?

Correct AnswerverifiedShow Answer

Which kind of T cell is most important in the removal of cancer cells or virally infected cells from the body?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The lymphoid organ in which B lymphocytes are produced is the

Correct AnswerverifiedShow Answer

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