Question 1

A very rapid response to a pathogen,involving antibodies,will be a secondary immune reaction will take place.

Accepted Answer

A) True 
 B)False

Question 2

Adaptive immune defenses provide a rapid,broad defense against any infectious agent to which an organism has had a chance to react,while innate immunity is more broadly directed in its action.

Accepted Answer

A) True 
 B)False  True

Question 3

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

Question 4

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

Question 5

If you see cytotoxic T cells,you know that a humeral response is underway.

Accepted Answer

A) True 
 B)False

Question 6

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"F) A) and E)
G) A) and B)

Question 7

The substance that when activated triggers a chain reaction that punctures bacterial cell membranes is

Accepted Answer

A)  histamine.
B)  interleukin.
C)  plasma.
D)  complement protein.
E)  epinephrinE.F) C) and E)
G) A) and C)

Question 8

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 gene used to make antibodies occurs.F) None of the above
G) A) and C)

Question 9

Which description is correctly matched with its term?

Accepted Answer

A)  Innate defenses : able to defend against any pathogen
B)  Adaptive immunity : able to defend against any pathogen
C)  Innate defenses : unable to fight cancerous cells
D)  Adaptive immunity : unable to fight cancerous cells
E)  All answers are correct.F) B) and D)
G) A) and C)

Question 10

In the section "Investigating Life: The Hidden Cost of Hygiene," what is the hygiene hypothesis?

Accepted Answer

A)  People who have more infections will have an overactive immune system.
B)  People who have better hygiene and are cleaner will have more infections.
C)  People who have better hygiene and are cleaner will have a weaker immune system.
D)  People who have fewer infections will have an overactive immune system.
E)  People who have better hygiene and are cleaner will have fewer infections.F) D) and E)
G) A) and B)

Question 11

A preparation that "teaches" the immune system to recognize a disease-causing agent without actually causing disease is termed a(n)

Accepted Answer

A)  antibiotic.
B)  virus.
C)  antiviral.
D)  vaccination.
E)  injection.F) A) and C)
G) C) and E)

Question 12

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 C)
G) A) and B)

Question 13

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

Accepted Answer

A) True 
 B)False  True

Question 14

What would occur if the lymphatic system was absent?

Accepted Answer

A)  Cancer would not spread as quickly because cancerous cells would not be transported by the lymphatic system,nor stored in lymph nodes.
B)  Bacteria located in the body would not be destroyed if they were not in the blood.
C)  Viruses located in the body would not be destroyed if they were not in the blood.
D)  Cancer cells located in the body would not be destroyed if they were not in the blooD.
E)  All answers are correct.F) D) and E)
G) C) and D)

Question 15

B cells or T cells are

Accepted Answer

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

Question 16

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

Question 17

If a tumor metastasizes,this means that it has moved to another part of the body.Doctors often look in lymph nodes near a tumor for signs of metastasis.Why might cancer cells be found in lymph nodes?

Accepted Answer

A)  because the tumor started in the lymph node
B)  because the lymphatic system collects fluids and cells from tissues
C)  because white blood cells are formed in lymph nodes in response to the tumor
D)  because the tumor is recognized as a foreign antigen and is being attacked
E)  because the tumor cells may have moved from the blood into the lymph with the plasmaF) None of the above
G) A) and B) B

Question 18

A Y-shaped protein that is produced in response to a specific antigen and recognizes these antigens is a(n)

Accepted Answer

A)  interferon.
B)  antibody.
C)  complement protein.
D)  phagocyte.
E)  B cell.F) A) and B)
G) A) and C)

Question 19

Which would a person in a less-developed country be less likely to have than a person in a more-developed country,according to the hygiene hypothesis?

Accepted Answer

A)  bacterial infection
B)  parasites
C)  asthma
D)  viral infection
E)  fungal infectionF) A) and B)
G) C) and E)

Question 20

HIV-positive people track the progress of their disease with blood tests that measure the number of

Accepted Answer

A)  blood platelets.
B)  B cells.
C)  helper T cells.
D)  cytotoxic T cells.
E)  plasma cells.F) B) and E)
G) A) and B)

Exam 29: The Immune System

A very rapid response to a pathogen,involving antibodies,will be a secondary immune reaction will take place.

Correct AnswerverifiedShow Answer

Adaptive immune defenses provide a rapid,broad defense against any infectious agent to which an organism has had a chance to react,while innate immunity is more broadly directed in its action.

Correct AnswerverifiedTrue

Immunological memory results from the production of

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

If you see cytotoxic T cells,you know that a humeral response is underway.

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

The substance that when activated triggers a chain reaction that punctures bacterial cell membranes is

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

Which description is correctly matched with its term?

Correct AnswerverifiedShow Answer

In the section "Investigating Life: The Hidden Cost of Hygiene," what is the hygiene hypothesis?

Correct AnswerverifiedShow Answer

A preparation that "teaches" the immune system to recognize a disease-causing agent without actually causing disease is termed a(n)

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedTrue

What would occur if the lymphatic system was absent?

Correct AnswerverifiedShow Answer

B cells or T cells are

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

If a tumor metastasizes,this means that it has moved to another part of the body.Doctors often look in lymph nodes near a tumor for signs of metastasis.Why might cancer cells be found in lymph nodes?

Correct AnswerverifiedB

A Y-shaped protein that is produced in response to a specific antigen and recognizes these antigens is a(n)

Correct AnswerverifiedShow Answer

Which would a person in a less-developed country be less likely to have than a person in a more-developed country,according to the hygiene hypothesis?

Correct AnswerverifiedShow Answer

HIV-positive people track the progress of their disease with blood tests that measure the number of

Correct AnswerverifiedShow Answer

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True

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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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True

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B

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