Question 1

Which correctly describes B cells and T cells?

Accepted Answer

A)  B cells and T cells are lymphocytes. 
B)  B cells and T cells attack cancerous cells in the body. 
C)  B cells and T cells attack foreign particles in the body. 
D)  B cells and T cells are not innate defenses. 
E)  All answers are correct. 
A)  B cells and T cells are lymphocytes. 
B)  B cells and T cells attack cancerous cells in the body. 
C)  B cells and T cells attack foreign particles in the body. 
D)  B cells and T cells are not innate defenses. 
E)  All answers are correct.

Question 2

Although the lymphatic system has many similarities to the circulatory system,what can the lymphatic system accomplish that the circulatory system cannot?

Accepted Answer

A)  generate platelets 
B)  collect bacteria, viruses, cancer cells, and other large particles from body tissues 
C)  generate red blood cells 
D)  destroy bacteria, viruses, cancer cells, and other large particles from body tissues 
E)  generate new body tissues during recovery 
A)  generate platelets 
B)  collect bacteria, viruses, cancer cells, and other large particles from body tissues 
C)  generate red blood cells 
D)  destroy bacteria, viruses, cancer cells, and other large particles from body tissues 
E)  generate new body tissues during recovery

Question 3

A molecule that stimulates an immune-system reaction by B cells and T cells is termed a(n)

Accepted Answer

A)  antibody. 
B)  antigen. 
C)  substrate. 
D)  phagocyte. 
E)  complement protein. 
A)  antibody. 
B)  antigen. 
C)  substrate. 
D)  phagocyte. 
E)  complement protein.

Question 4

The primary immune response produces memory cells that stimulate a faster immune response on a subsequent exposure to the same foreign antigen.

Accepted Answer

A) True 
 B)False

Question 5

A phagocyte is a cell that

Accepted Answer

A)  engulfs other cells and debris. 
B)  primarily is used to produce antibodies. 
C)  produces white blood cells. 
D)  produces platelets. 
E)  transports oxygen to tissues. 
A)  engulfs other cells and debris. 
B)  primarily is used to produce antibodies. 
C)  produces white blood cells. 
D)  produces platelets. 
E)  transports oxygen to tissues.

Question 6

Adaptive immune defenses provide a defense against a specific infectious agent,while innate immunity is more broadly directed in its action.

Accepted Answer

A) True 
 B)False

Question 7

In many autoimmune diseases such as lupus and rheumatoid arthritis,antibody complexes form in the blood.Kidney failure is a common consequence of these diseases for which reason?

Accepted Answer

A)  Antibodies attack the kidney. 
B)  The antibody complexes become trapped in the lymph. 
C)  The antibody complexes become trapped in the kidney. 
D)  The kidney is a part of the lymphatic system and becomes full of lymphocytes. 
E)  The kidney is part of the immune system and becomes full of leukocytes. 
A)  Antibodies attack the kidney. 
B)  The antibody complexes become trapped in the lymph. 
C)  The antibody complexes become trapped in the kidney. 
D)  The kidney is a part of the lymphatic system and becomes full of lymphocytes. 
E)  The kidney is part of the immune system and becomes full of leukocytes.

Question 8

If you see B cells,you know that a humoral response is underway.

Accepted Answer

A) True 
 B)False

Question 9

Every year the common flu vaccine is designed to protect against three different strains of the influenza virus.How is your body able to raise antibodies against so many new forms of the flu virus?

Accepted Answer

A)  Each B cell can make antibodies against all antigens. 
B)  The vaccine contains the antibodies against the strains of flu virus so your body does not need to make them. 
C)  Viruses are destroyed by the passive immune system. 
D)  Clonal deletion of B and T cells that recognize the virus occurs. 
E)  Recombination of the genes used to make antibodies occurs. 
A)  Each B cell can make antibodies against all antigens. 
B)  The vaccine contains the antibodies against the strains of flu virus so your body does not need to make them. 
C)  Viruses are destroyed by the passive immune system. 
D)  Clonal deletion of B and T cells that recognize the virus occurs. 
E)  Recombination of the genes used to make antibodies occurs.

Question 10

Physical and chemical barriers that form the first line of innate defense include

Accepted Answer

A)  the acidity of the stomach. 
B)  tear fluid from the eye. 
C)  an un-punctured skin. 
D)  mucus and cilia of the respiratory tract. 
E)  All answers are correct. 
A)  the acidity of the stomach. 
B)  tear fluid from the eye. 
C)  an un-punctured skin. 
D)  mucus and cilia of the respiratory tract. 
E)  All answers are correct.

Question 11

If you observe an immune reaction involving a cytotoxic T cell,it is a

Accepted Answer

A)  primary response. 
B)  secondary response. 
C)  cell-mediated response. 
D)  humeral response. 
E)  No answer is correct. 
A)  primary response. 
B)  secondary response. 
C)  cell-mediated response. 
D)  humeral response. 
E)  No answer is correct.

Question 12

The primary function of a vaccine is to

Accepted Answer

A)  introduce antibodies into a person. 
B)  create immunological memory without causing disease. 
C)  introduce synthetic drugs into a person. 
D)  give a person a mild disease. 
E)  stimulate the production of blood platelets. 
A)  introduce antibodies into a person. 
B)  create immunological memory without causing disease. 
C)  introduce synthetic drugs into a person. 
D)  give a person a mild disease. 
E)  stimulate the production of blood platelets.

Question 13

If you transfuse type AB blood into a patient with type A blood,the patient will raise antibodies against the B antigen on the donor's blood,but will not raise antibodies against the A antigen.Why not?

Accepted Answer

A)  B and T cells that recognize the A antigen will have been removed by clonal deletion. 
B)  Antibodies that recognize the A antigen will have been removed by the spleen. 
C)  Antibodies that recognize the A antigen will have been removed by the bone marrow. 
D)  Macrophages will not present the A antigen to T cells. 
E)  Recombination of the gene for antibodies cannot produce self-reactive clones. 
A)  B and T cells that recognize the A antigen will have been removed by clonal deletion. 
B)  Antibodies that recognize the A antigen will have been removed by the spleen. 
C)  Antibodies that recognize the A antigen will have been removed by the bone marrow. 
D)  Macrophages will not present the A antigen to T cells. 
E)  Recombination of the gene for antibodies cannot produce self-reactive clones.

Question 14

When a baby receives antibodies in breast milk,this is an example of passive immunity.

Accepted Answer

A) True 
 B)False

Question 15

A disease-causing agent that does not usually infect and cause disease in a person with a healthy immune system is termed a(n)

Accepted Answer

A)  pathogen. 
B)  subtle pathogen. 
C)  secondary pathogen. 
D)  opportunistic pathogen. 
E)  unlikely pathogen. 
A)  pathogen. 
B)  subtle pathogen. 
C)  secondary pathogen. 
D)  opportunistic pathogen. 
E)  unlikely pathogen.

Question 16

The "master cells" of the immune system that initiate and coordinate the adaptive immune response are

Accepted Answer

A)  basophils. 
B)  helper T cells. 
C)  mast cells. 
D)  cytotoxic T cells. 
E)  B cells. 
A)  basophils. 
B)  helper T cells. 
C)  mast cells. 
D)  cytotoxic T cells. 
E)  B cells.

Question 17

Which is an example of humoral immunity?

Accepted Answer

A)  a cytotoxic T cell destroying a virus-infected cell 
B)  a self-attack from an autoimmune disease 
C)  antibodies produced that create an immunodeficiency 
D)  antibodies produced that clone a pathogen 
E)  antibodies produced that destroy an invading pathogen 
A)  a cytotoxic T cell destroying a virus-infected cell 
B)  a self-attack from an autoimmune disease 
C)  antibodies produced that create an immunodeficiency 
D)  antibodies produced that clone a pathogen 
E)  antibodies produced that destroy an invading pathogen

Question 18

A very rapid response to a pathogen,involving antibodies,is a secondary immune reaction.

Accepted Answer

A) True 
 B)False

Question 19

Why is there potential for a woman's body to recognize her fetus as foreign?

Accepted Answer

A)  The fetus and mother are not genetically identical. 
B)  The mother may have an autoimmune disease and recognize self antigens as foreign. 
C)  The mother's immune system may be suppressed. 
D)  The fetus is separated from the mother's blood and immune system. 
E)  By the time the mother produces antibodies, the baby has been born. 
A)  The fetus and mother are not genetically identical. 
B)  The mother may have an autoimmune disease and recognize self antigens as foreign. 
C)  The mother's immune system may be suppressed. 
D)  The fetus is separated from the mother's blood and immune system. 
E)  By the time the mother produces antibodies, the baby has been born.

Question 20

Many parasites are too large to be engulfed by phagocytosis.Which would be effective in killing parasites?

Accepted Answer

A)  complement proteins 
B)  T helper cells 
C)  B cells 
D)  macrophages 
E)  basophils 
A)  complement proteins 
B)  T helper cells 
C)  B cells 
D)  macrophages 
E)  basophils

Exam 29: The Immune System

Which correctly describes B cells and T cells?

Although the lymphatic system has many similarities to the circulatory system,what can the lymphatic system accomplish that the circulatory system cannot?

A molecule that stimulates an immune-system reaction by B cells and T cells is termed a(n)

The primary immune response produces memory cells that stimulate a faster immune response on a subsequent exposure to the same foreign antigen.

A phagocyte is a cell that

Adaptive immune defenses provide a defense against a specific infectious agent,while innate immunity is more broadly directed in its action.

In many autoimmune diseases such as lupus and rheumatoid arthritis,antibody complexes form in the blood.Kidney failure is a common consequence of these diseases for which reason?

If you see B cells,you know that a humoral response is underway.

Every year the common flu vaccine is designed to protect against three different strains of the influenza virus.How is your body able to raise antibodies against so many new forms of the flu virus?

Physical and chemical barriers that form the first line of innate defense include

If you observe an immune reaction involving a cytotoxic T cell,it is a

The primary function of a vaccine is to

If you transfuse type AB blood into a patient with type A blood,the patient will raise antibodies against the B antigen on the donor's blood,but will not raise antibodies against the A antigen.Why not?

When a baby receives antibodies in breast milk,this is an example of passive immunity.

A disease-causing agent that does not usually infect and cause disease in a person with a healthy immune system is termed a(n)

The "master cells" of the immune system that initiate and coordinate the adaptive immune response are

Which is an example of humoral immunity?

A very rapid response to a pathogen,involving antibodies,is a secondary immune reaction.

Why is there potential for a woman's body to recognize her fetus as foreign?

Many parasites are too large to be engulfed by phagocytosis.Which would be effective in killing parasites?

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