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.F) A) and C)
G) B) and E)

Question 2

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.F) B) and E)
G) C) and E)

Question 3

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.F) A) and B)
G) A) and C)

Question 4

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.F) B) and C)
G) A) and D)

Question 5

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.F) A) and D)
G) A) and B)

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

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.F) A) and E)
G) A) and C)

Question 8

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

Accepted Answer

A) True 
 B)False

Question 9

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)   basophilsF) C) and E)
G) A) and C)

Question 10

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.F) A) and B)
G) A) and C)

Question 11

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.F) A) and E)
G) A) and C)

Question 12

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 13

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

Accepted Answer

A) True 
 B)False

Question 14

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.F) B) and C)
G) A) and D)

Question 15

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 recoveryF) A) and B)
G) A) and C)

Question 16

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.F) D) and E)
G) A) and D)

Question 17

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

Accepted Answer

A) True 
 B)False

Question 18

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.F) C) and D)
G) A) and B)

Question 19

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 pathogenF) C) and D)
G) B) and C)

Question 20

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.F) A) and B)
G) A) and D)

Exam 29: The Immune System

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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?

Correct AnswerverifiedShow Answer

Which correctly describes B cells and T cells?

Correct AnswerverifiedShow Answer

Which is an example of humoral immunity?

Correct AnswerverifiedShow Answer

The primary function of a vaccine is to

Correct AnswerverifiedShow Answer

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?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A phagocyte is a cell that

Correct AnswerverifiedShow Answer

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?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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