Question 1

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

Question 2

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

Question 3

Which of the following are examples of cell-mediated immunity?

Accepted Answer

A)  A neutrophil killing a bacteria by direct cell to cell contact, and a cytotoxic T cell destroying a virus-infected cell.
B)  A cytotoxic T cell destroying a virus-infected cell
C)  Antibodies produced that destroy an invading pathogen, and cytotoxic T cell destroying a virus-infected cell,
D)  A cytotoxic T cell destroying a virus-infected cel,.l
E)  Antibodies produced that destroy an invading pathogen

Question 4

Immunological memory results from the production of:

Accepted Answer

A)  B and T memory cells
B)  Mast and B memory cells
C)  Mast memory cells
D)  B memory cells
E)  T memory cells

Question 5

The type of T cell that is primarily responsible for the production of antibodies is the plasma cell.

Accepted Answer

A) True 
 B)False

Question 6

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

Accepted Answer

A)  Antibiotic
B)  Sulfa drug
C)  Analgesic
D)  Vaccination
E)  Injection

Question 7

Histamine triggers vasodilation and leakiness in blood vessels during inflammation.Why would this be beneficial in fighting an infection by a pathogen?

Accepted Answer

A)  Increased number of white blood cells
B)  Increased migration of white blood cells to site of infection
C)  Increased number of white blood cells and their migration to site of infection
D)  Increased accessibility of the pathogen to the blood
E)  Increased accessibility of the pathogen to the blood and number of white blood cells

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)  By clonal deletion of B and T cells that recognize the virus
E)  By recombination of the gene used to make antibodies

Question 9

According to the hygiene hypothesis,which of the following would a person in a less developed country be less likely to have than a person in a more developed country?

Accepted Answer

A)  Bacterial infection
B)  Parasites
C)  Asthma
D)  Viral infection
E)  Fungal infection

Question 10

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 11

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

Accepted Answer

A)  Conjugation
B)  Meiotic regeneration
C)  Recombination
D)  Clonal selection
E)  Genetic shuffling

Question 12

Which of the following are examples of active immunity?

Accepted Answer

A)  A fetus acquiring antibodies through the placenta, or a person receiving an injection of antibodies
B)  Antibodies produced from a vaccine, or a person receiving an injection of antibodies
C)  Antibodies produced from a vaccine
D)  A fetus acquiring antibodies through the placenta
E)  A person receiving an injection of antibodies

Question 13

Each year there are an estimated 250,000 people who could benefit from a bone marrow transplant.A major challenge is finding a suitable donor with matching MHC proteins.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 recipients bone marrow as foreign
B)  MHC proteins make antibodies which 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 14

A fever has no defense function,but only acts as a sign that an infection is present in the body.

Accepted Answer

A) True 
 B)False

Question 15

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 like sulfa drugs into a person
D)  Give a person a mild disease
E)  Stimulate the production of blood platelets

Question 16

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

Accepted Answer

A) True 
 B)False

Question 17

Which of the following vaccines would expose a person to antigen for the longest time,and thus be the least likely to require repeated booster vaccinations?

Accepted Answer

A)  An inactivated pathogen
B)  Inactivated toxins
C)  Subunits of pathogens
D)  A live weakened pathogen
E)  Individual proteins from pathogens

Question 18

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

Accepted Answer

A)  Histamine
B)  Interleukin
C)  ADH
D)  Complement
E)  Epinephrine

Question 19

figure 33.19 
-In figure 33.19,what is the dependent variable?

Accepted Answer

A)  The number of children with allergies to dust mites
B)  If the children were infected with flatworms
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 blood

Question 20

Which of the following are examples of passive immunity?

Accepted Answer

A)  Antibodies produced from a vaccine, or a person receiving an injection of antibodies
B)  A fetus acquiring antibodies through the placenta, or a person receiving an injection of antibodies
C)  A fetus acquiring antibodies through the placenta
D)  A person receiving an injection of antibodies
E)  Antibodies produced from a vaccine

Exam 33: The Immune System

Which of the following are examples of active immunity?

Correct AnswerverifiedShow Answer

The type of T cell that is primarily responsible for the production of antibodies is the plasma cell.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A fever has no defense function,but only acts as a sign that an infection is present in the body.

Correct AnswerverifiedShow Answer

The primary function of a vaccine is to:

Correct AnswerverifiedShow Answer

Which of the following vaccines would expose a person to antigen for the longest time,and thus be the least likely to require repeated booster vaccinations?

Correct AnswerverifiedShow Answer

Which of the following are examples of passive immunity?

Correct AnswerverifiedShow Answer

According to the hygiene hypothesis,which of the following would a person in a less developed country be less likely to have than a person in a more developed country?

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

figure 33.19 -In figure 33.19,what is the dependent variable?

Correct AnswerverifiedShow Answer

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(an) :

Correct AnswerverifiedShow Answer

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

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

Histamine triggers vasodilation and leakiness in blood vessels during inflammation.Why would this be beneficial in fighting an infection by a pathogen?

Correct AnswerverifiedShow Answer

Each year there are an estimated 250,000 people who could benefit from a bone marrow transplant.A major challenge is finding a suitable donor with matching MHC proteins.Why is it important that the MHC proteins match between the donor and recipient?

Correct AnswerverifiedShow Answer

Which of the following are examples of cell-mediated immunity?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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