Question 1

The surface defenses of the body consist of the ______ and the mucous membranes lining the digestive and respiratory tracts.

Accepted Answer

A)  bone marrow
B)  skin
C)  T-cells
D)  lymphocytesE) None of the above
F) C) and D)

Question 2

Individuals who lack antigens on their red blood cell surfaces are more likely to be

Accepted Answer

A)  A,Rh+.
B)  B,Rh+.
C)  AB,Rh-.
D)  O,Rh-.
E)  O,Rh+.F) A) and D)
G) A) and B)

Question 3

_________ produce specific antibodies.

Accepted Answer

A)  B cells
B)  Macrophages
C)  Plasma cells
D)  T cells
E)  MonocytesF) None of the above
G) All of the above

Question 4

Which of the following is not a class of immunoglobin?

Accepted Answer

A)  IgM
B)  IgD
C)  IgC
D)  IgG
E)  IgAF) B) and D)
G) A) and E)

Question 5

The cellular defenses of vertebrates are complemented by a very effective chemical defense called the _________ system.

Accepted Answer

A)  autoimmune
B)  relational
C)  lymphatic
D)  complementE) B) and C)
F) C) and D)

Question 6

The ability of a vertebrate to generate millions of different lymphocytes is a result of its DNA undergoing

Accepted Answer

A)  DNA rearrangement.
B)  DNA reestablishment.
C)  clonal variability.
D)  instructional variation.
E)  gene cloning.F) C) and D)
G) A) and B)

Question 7

The development of T cells in the thymus is overseen by

Accepted Answer

A)  suppressor cells.
B)  cytotoxic cells.
C)  mediator cells.
D)  inducer cells.
E)  helper cells.F) B) and E)
G) A) and B)

Question 8

_________ are macrophage precursor cells.

Accepted Answer

A)  B cells
B)  Macrophages
C)  Plasma cells
D)  T cells
E)  MonocytesF) A) and C)
G) All of the above

Question 9

If different types of blood are mixed together because different antibodies exist for the ABO and Rh factor antigens on the surface of red blood cells,

Accepted Answer

A)  an autoimmune reaction will occur.
B)  an infection will occur.
C)  an agglutination reaction will occur.
D)  an inflammatory reaction will occur.
E)  a temperature response will occur.F) D) and E)
G) None of the above

Question 10

The human immunodeficiency virus mounts a direct attack on TH cells by recognizing the _______ surface proteins associated with these cells.

Accepted Answer

A)  Fc
B)  CD4
C)  epitope
D)  cytokineE) A) and C)
F) B) and C)

Question 11

All of the following are types of leukocytes except

Accepted Answer

A)  neutrophils.
B)  eosinophils and basophils.
C)  monocytes.
D)  T and B cells.
E)  erythrocytes.F) None of the above
G) A) and E)

Question 12

Referring to the figure,which statement is false?

Accepted Answer

A)  Cytokines are produced in both diagrams.
B)  Antigens are produced in both diagrams.
C)  Naïve cells are involved in diagram I.
D)  The humoral response represents diagram II.E) A) and B)
F) A) and C)

Question 13

_________ are the source of antibody-producing cells.

Accepted Answer

A)  B cells
B)  Macrophages
C)  Plasma cells
D)  T cells
E)  MonocytesF) A) and E)
G) B) and D)

Question 14

Lymphocyte receptors are encoded by genes that are assembled by _______ rearrangement
And mutation.

Accepted Answer

A)  histochemical
B)  reversible
C)  gametic
D)  DNAE) A) and B)
F) A) and C)

Question 15

Select the incorrect statement regarding the class of proteins,known as interferons,that play a key role in body defenses.

Accepted Answer

A)  There are three types of interferons,alpha,beta,and gammA.
B)  All cells of the body produce all three types of interferon.
C)  The secretion of gamma interferon is an immunological defense against infections and cancer.
D)  All interferons are polypeptides.
E)  Interferons are messengers that protect normal cells in the areas of infected cells from becoming infected.F) B) and C)
G) D) and E)

Question 16

A friend tells you the following story."My aunt just received a heart transplant.Her doctors warned us that her body might reject the tissue.I just can't understand how that could happen as human hearts are made of the same tissues,aren't they?" Your correct response should be

Accepted Answer

A)  "Yes,all human hearts are made of cardiac muscles."
B)  "Yes,all human hearts are made of cardiac muscles,except some humans have different tissues inside their hearts and this could lead to a tissue rejection by the recipient."
C)  "Yes,all human hearts are made of cardiac muscles.As far as the rejection of tissues goes,your aunt might have different antibodies than did the donor,which could lead to a rejection."
D)  "Yes,all human hearts are made of cardiac muscles.However,your aunt might have been given some type of drug during the transplant operation that might cause tissue rejection.You can never be too careful in a hospital,you know."
E)  "Yes,all human hearts are made of cardiac muscles.As far as the rejection issue,everyone has different MHC proteins on their tissues.Your aunt's immune system recognizes the 'self' tissues but can cause tissue rejection because of the 'nonself' tissue in her body having different MHC proteins."F) B) and D)
G) A) and C)

Question 17

Which of the following is true regarding cytokines?

Accepted Answer

A)  Cytokines are secreted by TH cells and bind to receptors.
B)  Cytokines are immune cells involved in producing antibodies.
C)  Cytokines are secreted in high concentrations during infection.
D)  Cytokines bind to intracellular receptors.
E)  Cytokines protect in the attack of pathogens by phagocytosis.F) A) and D)
G) B) and C)

Question 18

__________ diseases are those abnormal conditions in which the body's defensive cells fail to make the self versus the nonself distinction correctly,and attack the body's own tissues.

Accepted Answer

A)  Septic
B)  Nondiscrete
C)  Autoimmune
D)  CancerousE) B) and D)
F) None of the above

Question 19

Which of the following is not part of the inflammatory response?

Accepted Answer

A)  Histamine and other chemicals are released,which produce redness,warmth,and edemA.
B)  Neutrophils,monocytes,and macrophages attack the invading microbes and contribute to the pus.
C)  Antibodies and interferons are produced against the antigens.
D)  Invading agent causes the release of pyrogens,which produce a fever.E) None of the above
F) C) and D)

Question 20

Immunity gained by the transfer of antibodies across the placental barrier is called

Accepted Answer

A)  passive immunity.
B)  acquired immunity.
C)  humoral immunity.
D)  cell-mediated immunity.
E)  auto immunity.F) A) and B)
G) None of the above

Exam 52: The Immune System

The surface defenses of the body consist of the ______ and the mucous membranes lining the digestive and respiratory tracts.

Correct AnswerverifiedShow Answer

Individuals who lack antigens on their red blood cell surfaces are more likely to be

Correct AnswerverifiedShow Answer

Referring to the figure,which statement is false?

Correct AnswerverifiedShow Answer

_________ are the source of antibody-producing cells.

Correct AnswerverifiedShow Answer

Select the incorrect statement regarding the class of proteins,known as interferons,that play a key role in body defenses.

Correct AnswerverifiedShow Answer

__________ diseases are those abnormal conditions in which the body's defensive cells fail to make the self versus the nonself distinction correctly,and attack the body's own tissues.

Correct AnswerverifiedShow Answer

The ability of a vertebrate to generate millions of different lymphocytes is a result of its DNA undergoing

Correct AnswerverifiedShow Answer

The development of T cells in the thymus is overseen by

Correct AnswerverifiedShow Answer

Which of the following is true regarding cytokines?

Correct AnswerverifiedShow Answer

_________ are macrophage precursor cells.

Correct AnswerverifiedShow Answer

All of the following are types of leukocytes except

Correct AnswerverifiedShow Answer

The cellular defenses of vertebrates are complemented by a very effective chemical defense called the _________ system.

Correct AnswerverifiedShow Answer

If different types of blood are mixed together because different antibodies exist for the ABO and Rh factor antigens on the surface of red blood cells,

Correct AnswerverifiedShow Answer

Lymphocyte receptors are encoded by genes that are assembled by _______ rearrangement And mutation.

Correct AnswerverifiedShow Answer

Immunity gained by the transfer of antibodies across the placental barrier is called

Correct AnswerverifiedShow Answer

_________ produce specific antibodies.

Correct AnswerverifiedShow Answer

Which of the following is not a class of immunoglobin?

Correct AnswerverifiedShow Answer

Which of the following is not part of the inflammatory response?

Correct AnswerverifiedShow Answer

The human immunodeficiency virus mounts a direct attack on TH cells by recognizing the _______ surface proteins associated with these cells.

Correct AnswerverifiedShow Answer

A friend tells you the following story."My aunt just received a heart transplant.Her doctors warned us that her body might reject the tissue.I just can't understand how that could happen as human hearts are made of the same tissues,aren't they?" Your correct response should be

Correct AnswerverifiedShow Answer

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The human immunodeficiency virus mounts a direct attack on T_H cells by recognizing the _______ surface proteins associated with these cells.

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