Question 1

A primary "antigen presenting cell," a cell that presents an antigen to a helper T cell,is a

Accepted Answer

A)   B cell.
B)   T cell.
C)   macrophage.
D)   plasma cell.
E)   chondrocyte.

Question 2

A major challenge is finding an acceptable bone marrow donor with the matching complex of Major Histocompatibility (MHC) proteins a person needs.Why is it important that the MHC proteins match between the donor and recipient?

Accepted Answer

A)   If they don't match, the donor's immune system will see the recipient's bone marrow as foreign.
B)   MHC proteins make antibodies that could attack the recipient's immune system.
C)   MHC proteins serve as inhibitors of the immune system.
D)   If they don't match, the recipient's immune system will see the donor's bone marrow as foreign.
E)   MHC proteins are used by cytotoxic T cells to kill bacteria, and if they don't match they won't work properly.

Question 3

An exaggerated attack on a harmless antigen by an overly sensitive immune system is termed a(n)

Accepted Answer

A)   autoimmune disease.
B)   primary immune response.
C)   secondary immune response.
D)   allergy.
E)   innate defense stimulator.

Question 4

A cell that does not circulate in blood,but instead settles in tissues near the skin and in the digestive tract,producing and releasing histamine when tissue is damaged,is a

Accepted Answer

A)   basophil.
B)   mast cell.
C)   virus.
D)   macrophage.
E)   T cell.

Question 5

In a process called ________,an army of plasma cells and memory cells are produced from stimulated B cells.

Accepted Answer

A)   conjugation
B)   meiotic regeneration
C)   recombination
D)   clonal selection
E)   artificial selection

Question 6

The role of B cells in adaptive immunity is ________,while the role of T cells in adaptive immunity is ________.

Accepted Answer

A)   to recognize any antigen; to recognize a specific antigen
B)   to recognize a specific antigen; to recognize any antigen
C)   to secrete antibodies in humoral immunity; to attack marked cells in cell-mediated immunity
D)   to attack marked cells in cell-mediated immunity; to secrete antibodies in humoral immunity
E)   to create antigens; to destroy antibodies

Question 7

According to the hypothesis in the "Investigating Life" section,compared to a person in a developed country,a person in a developing country is less likely to have

Accepted Answer

A)   a bacterial infection.
B)   parasites.
C)   asthma.
D)   a viral infection.
E)   a fungal infection.

Question 8

Which is not a major part of the immune system?

Accepted Answer

A)   thymus
B)   bone marrow
C)   spleen
D)   pancreas
E)   lymph node

Question 9

Why do lymph nodes often become swollen during an infection?

Accepted Answer

A)   T cells reproduce in lymph nodes after being exposed to pathogens.
B)   B cells reproduce in lymph nodes after being exposed to pathogens.
C)   Macrophages move to lymph nodes after engulfing pathogens.
D)   Cytotoxic T cells attack pathogens in the lymph nodes, triggering inflammation.
E)   Vasodilation increases blood flow in the lymph nodes. C

Question 10

Every year the flu vaccine is designed to protect against three different strains of the influenza virus.Why do scientists typically have to make a new vaccine every year?

Accepted Answer

A)   because our bodies develop resistance to the vaccine and it becomes less effective
B)   because the viruses develop resistance to the vaccine
C)   because the viruses can mutate into new strains
D)   because people change their habits each year and become susceptible to different strains of the virus
E)   because a vaccine breaks down after one year

Question 11

The type of cell that is primarily responsible for initiating and coordinating the adaptive immune response is the B cell.

Accepted Answer

A) True 
 B)False  False

Question 12

Special cells produced by the immune system that are progeny of stimulated B cells and are antibody-producing factories are

Accepted Answer

A)   cytotoxic T cells.
B)   helper T cells.
C)   plasma cells.
D)   macrophages.
E)   All answers are correct.

Question 13

In an autoimmune disease,the immune system attacks the body's self antigens.

Accepted Answer

A) True 
 B)False

Question 14

B cells and T cells are

Accepted Answer

A)   basophils.
B)   invaders.
C)   lymphocytes.
D)   allergies.
E)   vaccines. C

Question 15

Immunological memory results from the production of

Accepted Answer

A)   both B and T memory cells.
B)   both mast and B memory cells.
C)   mast memory cells only.
D)   B memory cells only.
E)   T memory cells only.

Question 16

White blood cells are produced

Accepted Answer

A)   by mitotic division of other white blood cells.
B)   from platelets.
C)   from chondrocytes.
D)   from bone marrow stem cells.
E)   from plasma proteins.

Question 17

A person who has been bitten by a venomous snake needs help via passive immunity.

Accepted Answer

A) True 
 B)False

Question 18

If a human fetus is ________ and the pregnant woman is ________,an incompatibility that destroys the red blood cells of the fetus may occur.

Accepted Answer

A)   Rh-negative; Rh-positive
B)   type AB; type O
C)   type O; type AB
D)   Rh-positive; Rh-negative
E)   Rh-positive; type AB

Question 19

When explaining a patient's near death from anaphylactic shock,you would tell the patient that this was a secondary immune response.

Accepted Answer

A) True 
 B)False

Question 20

Each year there are an estimated 250,000 people who could benefit from a bone marrow transplant.What would happen to a patient who no longer had active bone marrow?

Accepted Answer

A)   They would be paralyzed.
B)   They could not filter their blood and would require dialysis.
C)   They would be immunocompromised.
D)   They could not produce bile.
E)   Their bones would degenerate.

Exam 29: The Immune System

A primary "antigen presenting cell," a cell that presents an antigen to a helper T cell,is a

Correct AnswerverifiedShow Answer

A major challenge is finding an acceptable bone marrow donor with the matching complex of Major Histocompatibility (MHC) proteins a person needs.Why is it important that the MHC proteins match between the donor and recipient?

Correct AnswerverifiedShow Answer

An exaggerated attack on a harmless antigen by an overly sensitive immune system is termed a(n)

Correct AnswerverifiedShow Answer

A cell that does not circulate in blood,but instead settles in tissues near the skin and in the digestive tract,producing and releasing histamine when tissue is damaged,is a

Correct AnswerverifiedShow Answer

In a process called ________,an army of plasma cells and memory cells are produced from stimulated B cells.

Correct AnswerverifiedShow Answer

The role of B cells in adaptive immunity is ________,while the role of T cells in adaptive immunity is ________.

Correct AnswerverifiedShow Answer

According to the hypothesis in the "Investigating Life" section,compared to a person in a developed country,a person in a developing country is less likely to have

Correct AnswerverifiedShow Answer

Which is not a major part of the immune system?

Correct AnswerverifiedShow Answer

Why do lymph nodes often become swollen during an infection?

Correct AnswerverifiedC

Every year the flu vaccine is designed to protect against three different strains of the influenza virus.Why do scientists typically have to make a new vaccine every year?

Correct AnswerverifiedShow Answer

The type of cell that is primarily responsible for initiating and coordinating the adaptive immune response is the B cell.

Correct AnswerverifiedFalse

Special cells produced by the immune system that are progeny of stimulated B cells and are antibody-producing factories are

Correct AnswerverifiedShow Answer

In an autoimmune disease,the immune system attacks the body's self antigens.

Correct AnswerverifiedShow Answer

B cells and T cells are

Correct AnswerverifiedC

Immunological memory results from the production of

Correct AnswerverifiedShow Answer

White blood cells are produced

Correct AnswerverifiedShow Answer

A person who has been bitten by a venomous snake needs help via passive immunity.

Correct AnswerverifiedShow Answer

If a human fetus is ________ and the pregnant woman is ________,an incompatibility that destroys the red blood cells of the fetus may occur.

Correct AnswerverifiedShow Answer

When explaining a patient's near death from anaphylactic shock,you would tell the patient that this was a secondary immune response.

Correct AnswerverifiedShow Answer

Each year there are an estimated 250,000 people who could benefit from a bone marrow transplant.What would happen to a patient who no longer had active bone marrow?

Correct AnswerverifiedShow Answer

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The role of B cells in adaptive immunity is ,while the role of T cells in adaptive immunity is .

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C

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False

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C

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If a human fetus is and the pregnant woman is ,an incompatibility that destroys the red blood cells of the fetus may occur.

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