Question 1

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) C) and E)
G) A) and D)

Question 2

Which of the following descriptions 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 C)
G) A) and B)

Question 3

A patient can have antibodies against many strains of HIV.Which of the following is the main reason that an effective vaccine has not been produced for the HIV virus that causes AIDS?

Accepted Answer

A)  The virus reproduces very rapidly.
B)  It takes 2-3 months to raise antibodies against the virus.
C)  The virus is transmitted sexually.
D)  The virus mutates rapidly,changing its outer coat.
E)  The virus is not technically alivE.F) B) and C)
G) A) and C)

Question 4

Which of the following is not part of the innate defense response?

Accepted Answer

A)  cilia that sweep bacteria out of the respiratory tract
B)  the process of inflammation
C)  antibody production
D)  fever production
E)  the complement-protein systemF) A) and D)
G) A) and C)

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) None of the above
G) All of the above

Question 6

Which of the following is correct about primary and secondary immune responses?

Accepted Answer

A)  The primary immune response occurs first.
B)  The primary immune response is smaller.
C)  Both respond to foreign antigens.
D)  All answers are correct.
E)  Both are responses of adaptive immunity.F) C) and D)
G) B) and E)

Question 7

Stem cells that give rise to white blood cells are located primarily in the thymus.

Accepted Answer

A) True 
 B)False

Question 8

The innate chemical defense substance that activates T cells and B cells is

Accepted Answer

A)  histamine.
B)  complement protein.
C)  interleukin.
D)  all of the answers.
E)  epinephrinE.F) B) and D)
G) B) and E)

Question 9

The innate chemical substance that alerts other cells and components of the immune system to a viral infection is

Accepted Answer

A)  histamine.
B)  interleukin.
C)  complement protein.
D)  interferon.
E)  epinephrinE.F) None of the above
G) A) and C)

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

Which of the following are examples 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) B) and E)
G) All of the above

Question 12

Rh incompatibility is due to an immune reaction to which of the following by a pregnant woman?

Accepted Answer

A)  a self antigen on red blood cells
B)  a foreign antibody on red blood cells
C)  a foreign antigen on red blood cells
D)  a self antibody on red blood cellsE) C) and D)
F) B) and D)

Question 13

In the section "Investigating Life: The Hidden Cost of Hygiene",what is the dependent variable in the figure?

Accepted Answer

A)  the number of children with allergies to dust mites
B)  the presence or absence of flatworm infections
C)  the amount of interleukin-10 produced
D)  the number of white blood cells in the children's blood
E)  the amount of antibodies in the children's bloodF) B) and E)
G) All of the above

Question 14

Which of the following 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 of the choices are correct.F) D) and E)
G) A) and E)

Question 15

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) A) and C)
G) A) and D)

Question 16

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) B) and E)
G) None of the above

Question 17

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) D) and E)
G) B) and D)

Question 18

The innate chemical substance produced by basophils that causes blood vessels to dilate is

Accepted Answer

A)  interleukin.
B)  complement protein.
C)  interferon.
D)  epinephrine.
E)  histaminE.F) A) and D)
G) B) and E)

Question 19

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.F) All of the above
G) B) and E)

Question 20

In the section "Investigating Life: The Hidden Cost of Hygiene",if a child was allergic to a substance scratched onto their skin,the area turned red and swollen within about 10 minutes.Which of the following would cause these symptoms?

Accepted Answer

A)  release of interleukin
B)  recruitment of B cells
C)  release of histamine
D)  the presence of flatworms
E)  the presence of dust mitesF) A) and B)
G) A) and C)

Exam 29: The Immune System

Which of the following is correct about primary and secondary immune responses?

Correct AnswerverifiedShow Answer

The innate chemical substance produced by basophils that causes blood vessels to dilate is

Correct AnswerverifiedShow Answer

A patient can have antibodies against many strains of HIV.Which of the following is the main reason that an effective vaccine has not been produced for the HIV virus that causes AIDS?

Correct AnswerverifiedShow Answer

Which of the following would occur if the lymphatic system was absent?

Correct AnswerverifiedShow Answer

In the section "Investigating Life: The Hidden Cost of Hygiene",if a child was allergic to a substance scratched onto their skin,the area turned red and swollen within about 10 minutes.Which of the following would cause these symptoms?

Correct AnswerverifiedShow Answer

In the section "Investigating Life: The Hidden Cost of Hygiene",what is the dependent variable in the figure?

Correct AnswerverifiedShow Answer

Stem cells that give rise to white blood cells are located primarily in the thymus.

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 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

The innate chemical substance that alerts other cells and components of the immune system to a viral infection is

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is not part of the innate defense response?

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

Rh incompatibility is due to an immune reaction to which of the following by a pregnant woman?

Correct AnswerverifiedShow Answer

The primary function of a vaccine is to

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

Which of the following descriptions is correctly matched with its term?

Correct AnswerverifiedShow Answer

The innate chemical defense substance that activates T cells and B cells is

Correct AnswerverifiedShow Answer

White blood cells are produced

Correct AnswerverifiedShow Answer

Which of the following are examples of humoral immunity?

Correct AnswerverifiedShow Answer

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