Question 1

T lymphocytes

Accepted Answer

A)   migrate from the thymus to the bone marrow where they mature.
B)   which recognize "self-cells" leave the thymus and enter lymphatic vessels and organs.
C)   must have the antigen presented to them by an antigen presenting cell.
D)   develop into plasma cells once activated.
E)   are a component of the bodies nonspecific immune defenses.F) A) and E)
G) None of the above

Question 2

Figure: 
-In this figure, A is acting as a(n)  ______________.

Accepted Answer

A)   antigen-presenting cell
B)   helper T cell
C)   neutrophil
D)   antibody
E)   plasma cellF) C) and D)
G) A) and B)

Question 3

One way the complement system acts is by producing

Accepted Answer

A)   proteins that assist neutrophils in recognizing a pathogen.
B)   mast cells that attack pathogens' membranes.
C)   histamines that stimulate B cell formation.
D)   kinins that bind to the surface of pathogens.
E)   macrophages that phagocytize bacteria.F) C) and E)
G) B) and D)

Question 4

Natural killer cells can destroy cancer cells which have lost their "self" proteins.

Accepted Answer

A) True 
 B)False

Question 5

Bacteria moved out of the lungs by cilia in the respiratory system are prevented from entering the body because the are often killed by

Accepted Answer

A)   lymphocytes in the saliva.
B)   filters lining the pharynx.
C)   stomach acid.
D)   lymph nodes at the base of the tongue.
E)   mucus in the trachea.F) B) and E)
G) None of the above

Question 6

Which of the following shows the function of cytotoxic T cells in correct order?

Accepted Answer

A)   perforin released - cytotoxic T cell binds to virus-infected cell - granzymes delivered - apoptosis occurs in virus-infected cell
B)   cytotoxic T cell binds to virus-infected cell - granzymes delivered - apoptosis occurs in virus-infected cell - perforin released
C)   apoptosis occurs in virus-infected cell - perforin released - cytotoxic T cell binds to virus-infected cell - perforin released
D)   cytotoxic T cell binds to virus-infected cell - perforin released - granzymes delivered - apoptosis occurs in virus-infected cell
E)   granzymes delivered - perforin released - apoptosis occurs in virus-infected cell - cytotoxic T cell binds to virus-infected cellF) B) and E)
G) B) and C)

Question 7

Which statement about vaccines is correct?

Accepted Answer

A)   Vaccines will always cause the patient to become ill in order to build the immune system.
B)   Vaccines never cause the patient to become ill in order to build the immune system.
C)   Vaccines are not intended to cause the patient to become ill in order to build the immune system.
D)   Vaccines need to be administered on a continuous basis in order to be effective.
E)   It is only necessary to be vaccinated once in order to have immunity for your entire life.F) B) and E)
G) A) and D)

Question 8

_________ of T lymphocytes leave the thymus.

Accepted Answer

A)   5%
B)   10%
C)   50%
D)   75%
E)   24%F) A) and D)
G) None of the above

Question 9

Figure: 
-David was in a car accident and needed a blood transfusion due to his injuries. His brother, Steve, went to the hospital hoping to donate blood to be used in the transfusion. David's blood type is type B. Steve's blood type is type AB. Which of the following statements is true regarding Steve's potential donation?

Accepted Answer

A)   David can not receive Steve's blood because of the antibodies in Steve's blood.
B)   David can not receive Steve's blood because of the antigens on David's blood.
C)   David can not receive Steve's blood because of the antibodies in David's blood.
D)   David can receive the transfusion from Steve.
E)   David can receive blood from Steve as long as it is only a small amount.F) C) and E)
G) A) and E)

Question 10

AIDS is caused by

Accepted Answer

A)   the human immunodeficiency virus which destroys helper T cells.
B)   the human immunodeficiency virus which stimulates apoptosis of immune system cells.
C)   allergens which stimulate helper T cells to produce cytokines.
D)   bacteria which destroy lymphocytes in the bone marrow.
E)   the human immunodeficiency virus which destroys macrophages.F) A) and B)
G) B) and D)

Question 11

When the body responds to its own cells as foreign antigens, this results in ________.

Accepted Answer

A)   allergies
B)   autoimmune disease
C)   passive immunity
D)   anaphylactic shock
E)   active immunityF) A) and B)
G) A) and C)

Question 12

Which of the following is NOT true regarding B-cell receptors?

Accepted Answer

A)   They bind with specific antigens.
B)   They cause B cells to produce plasma cells and memory B cells when activated.
C)   They may never encounter the antigen which binds to them.
D)   They are identical to the antibodies produced by plasma cells which they activated.
E)   They may be changed by the B cell in response to whatever pathogen is present.F) A) and C)
G) B) and E)

Question 13

What is the effect of T cells not undergoing apoptosis after the defeat of an infection?

Accepted Answer

A)   An HIV infection may result.
B)   Leukemia or lymphoma may result.
C)   The future immunity is that much stronger.
D)   An autoimmune disease may result.
E)   An allergy may result.F) A) and B)
G) A) and E)

Question 14

Figure: 
-In this figure, "B" represents ____________ which is released by "A", _________.

Accepted Answer

A)   histamine; mast cells
B)   histamine; neutrophils
C)   antibodies; mast cells
D)   pathogens; bacteria
E)   antibodies; B cellsF) A) and B)
G) C) and E)

Question 15

If a person has a genetic defect in the metabolic pathway which produces cytokines, then

Accepted Answer

A)   macrophages will not be produced by the immune system.
B)   B cells would not be activated to respond when cells presenting antigens are present.
C)   helper T cells would take over the role of activating B cells.
D)   the spleen would destroy all red blood cells.
E)   histamine will not be produced by mast cells.F) A) and E)
G) A) and B)

Question 16

Figure: 
-The letter "A" in the figure shown here is referring to a(n)  _________.

Accepted Answer

A)   sweat gland
B)   oil (sebaceous)  gland
C)   salivary gland
D)   blood vessel
E)   lymph nodeF) A) and E)
G) A) and D)

Question 17

During an inflammatory response, macrophages consume debris and cause the release of colony-stimulating factors which increase production of white blood cells by the bone marrow.

Accepted Answer

A) True 
 B)False

Question 18

Doctors can easily examine lymph nodes to see if a patient is fighting disease because

Accepted Answer

A)   many lymph nodes are superficial.
B)   all lymph nodes are superficial.
C)   lymph nodes become hot when fighting disease.
D)   lymph nodes secrete pus when fighting an infection.
E)   lymph nodes are concentrated in the abdomen.F) A) and D)
G) B) and E)

Question 19

Which of the following is NOT true about passive immunity?

Accepted Answer

A)   It is temporary.
B)   It can be gained by infants through breast milk.
C)   It is achieved through the production of antibodies by the person gaining the immunity.
D)   It can be achieved through injections of antibodies or immunoglobulins.
E)   It can be used to prevent an illness in someone who has been exposed to that illness.F) A) and E)
G) A) and B)

Question 20

Which of the following is not correct in describing the spleen?

Accepted Answer

A)   It contains red pulp and white pulp.
B)   It is an essential organ for survival.
C)   It can be involved in fighting cancer.
D)   It is spongy, containing many sinuses.
E)   It is easily ruptured by a severe blow or infection.F) None of the above
G) C) and E)

Exam 26: Defenses Against Diseases

T lymphocytes

Correct Answer
verified

Doctors can easily examine lymph nodes to see if a patient is fighting disease because

Correct Answer
verified

Which of the following is NOT true regarding B-cell receptors?

Correct Answer
verified

If a person has a genetic defect in the metabolic pathway which produces cytokines, then

Correct Answer
verified

What is the effect of T cells not undergoing apoptosis after the defeat of an infection?

Correct Answer
verified

When the body responds to its own cells as foreign antigens, this results in ________.

Correct Answer
verified

Which statement about vaccines is correct?

Correct Answer
verified

Bacteria moved out of the lungs by cilia in the respiratory system are prevented from entering the body because the are often killed by

Correct Answer
verified

Figure: -In this figure, "B" represents ____ which is released by "A", _.

Correct Answer
verified

During an inflammatory response, macrophages consume debris and cause the release of colony-stimulating factors which increase production of white blood cells by the bone marrow.

Correct Answer
verified

Correct Answer
verified

Figure: -The letter "A" in the figure shown here is referring to a(n) _________.

Correct Answer
verified

Which of the following is not correct in describing the spleen?

Correct Answer
verified

Natural killer cells can destroy cancer cells which have lost their "self" proteins.

Correct Answer
verified

Which of the following shows the function of cytotoxic T cells in correct order?

Correct Answer
verified

_________ of T lymphocytes leave the thymus.

Correct Answer
verified

Which of the following is NOT true about passive immunity?

Correct Answer
verified

One way the complement system acts is by producing

Correct Answer
verified

Figure: -In this figure, A is acting as a(n) ______________.

Correct Answer
verified

AIDS is caused by

Correct Answer
verified

Exam 26: Defenses Against Diseases

T lymphocytes

Correct AnswerverifiedShow Answer

Doctors can easily examine lymph nodes to see if a patient is fighting disease because

Correct AnswerverifiedShow Answer

Which of the following is NOT true regarding B-cell receptors?

Correct AnswerverifiedShow Answer

If a person has a genetic defect in the metabolic pathway which produces cytokines, then

Correct AnswerverifiedShow Answer

What is the effect of T cells not undergoing apoptosis after the defeat of an infection?

Correct AnswerverifiedShow Answer

When the body responds to its own cells as foreign antigens, this results in ________.

Correct AnswerverifiedShow Answer

Which statement about vaccines is correct?

Correct AnswerverifiedShow Answer

Bacteria moved out of the lungs by cilia in the respiratory system are prevented from entering the body because the are often killed by

Correct AnswerverifiedShow Answer

Figure: -In this figure, "B" represents ____________ which is released by "A", _________.

Correct AnswerverifiedShow Answer

During an inflammatory response, macrophages consume debris and cause the release of colony-stimulating factors which increase production of white blood cells by the bone marrow.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Figure: -The letter "A" in the figure shown here is referring to a(n) _________.

Correct AnswerverifiedShow Answer

Which of the following is not correct in describing the spleen?

Correct AnswerverifiedShow Answer

Natural killer cells can destroy cancer cells which have lost their "self" proteins.

Correct AnswerverifiedShow Answer

Which of the following shows the function of cytotoxic T cells in correct order?

Correct AnswerverifiedShow Answer

_________ of T lymphocytes leave the thymus.

Correct AnswerverifiedShow Answer

Which of the following is NOT true about passive immunity?

Correct AnswerverifiedShow Answer

One way the complement system acts is by producing

Correct AnswerverifiedShow Answer

Figure: -In this figure, A is acting as a(n) ______________.

Correct AnswerverifiedShow Answer

AIDS is caused by

Correct AnswerverifiedShow Answer

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Figure: -In this figure, "B" represents ____ which is released by "A", _.

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