Question 1

Neutrophils and macrophages are different in that

Accepted Answer

A)   neutrophils produce antibodies while macrophages do not.
B)   neutrophils produce histamines while macrophages produce antibodies.
C)   neutrophils travel to the site of injury while macrophages reside in certain tissues.
D)   neutrophils phagocytize pathogens while macrophages produce holes in a pathogen's membrane.
E)   neutrophils are part of the inflammatory response while macrophages are not.F) A) and E)
G) All of the above

Question 2

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) All of the above
G) A) and E)

Question 3

Which cell type plays a role in adaptive immunity in the body?

Accepted Answer

A)   lymphocytes
B)   red blood cells
C)   platelets
D)   epithelial cells
E)   None of these cell types play a role in adaptive immunity.F) C) and D)
G) C) and E)

Question 4

Bacteria that are moved out of the lungs by cilia in the respiratory system are prevented from entering the body because they 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) A) and D)

Question 5

This figure represents

Accepted Answer

A)   the events of the inflammatory response.
B)   the first stages of immunity.
C)   the complement system.
D)   the antibody response.
E)   the effects of an immunization on the blood.F) C) and D)
G) B) and C)

Question 6

Which of the following statements is correct about the usage of a booster?

Accepted Answer

A)   The booster allows the antibody concentration to rise to a level higher than the primary response.
B)   The booster will raise the antibody concentration in the individual by 10%.
C)   The booster will cause the antibody concentration to rise and then decrease rapidly.
D)   The booster will do nothing for the individuals immune response.
E)   The booster will initiate the immune response.F) A) and B)
G) B) and E)

Question 7

Immediate allergic responses occur when

Accepted Answer

A)   IgE antibodies in red blood cells cause destruction of allergens.
B)   IgE antibodies in mast cells attach to allergens, releasing histamines.
C)   cytotoxic T cells produce histamine in response to allergens.
D)   memory T cells release cytokines in response to allergens.
E)   memory B cells respond to the presence of an allergen.F) A) and B)
G) A) and C)

Question 8

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 9

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) C) and D)
G) B) and C)

Question 10

_______ cells are non-specific,destroying cells which do not exhibit "self" proteins.

Accepted Answer

A)   Complement
B)   Mast
C)   Natural killer
D)   Helper T
E)   PlasmaF) A) and E)
G) C) and E)

Question 11

Which statement about delayed allergic reactions is the most accurate?

Accepted Answer

A)   Memory T cells initiate the response at the site in which the allergen contacts the body.
B)   Cytotoxic T cells initiate the response at the site in which the allergen contacts the body.
C)   Memory T cells initiate the response at the site in which the antibodies contact the body.
D)   The response can occur within a matter of seconds.
E)   The response can lead to a sudden drop in blood pressure that can be life-threatening.F) D) and E)
G) A) and D)

Question 12

Which of the statistics regarding the number of cases of HIV is NOT true?

Accepted Answer

A)   Male-to-male contact accounts for the greatest number of new cases each year.
B)   As of 2010, there were about 10 million people living worldwide with HIV.
C)   In 2010, over 7,300 people were newly infected worldwide each day.
D)   In 2010, over 5000 people died worldwide from HIV complications each day.
E)   Heterosexual contact and intravenous drug use together account for a greater percentage of new cases than male-to-male contact.F) B) and D)
G) A) and E)

Question 13

Which autoimmune disorder is a breakdown of the myelin sheaths on the nerve cells?

Accepted Answer

A)   multiple sclerosis (MS) 
B)   myasthenia gravis
C)   systemic lupus erythematosus
D)   rheumatoid arthritis
E)   leukemiaF) B) and D)
G) B) and E)

Question 14

HIV is contracted mainly by rectal intercourse.

Accepted Answer

A) True 
 B)False

Question 15

Macrophages present antigens to T cells by digesting the pathogen and placing the pathogen's antigens on the macrophage plasma membrane along with an MHC "self" protein.

Accepted Answer

A) True 
 B)False

Question 16

T lymphocytes mature in the

Accepted Answer

A)   thyroid gland.
B)   bone marrow.
C)   thymus.
D)   spleen.
E)   blood.F) None of the above
G) B) and E)

Question 17

When a person is hypersensitive to pollen,they have ________ in response to the antigens on pollen called

Accepted Answer

A)   autoimmune disease; cytokines.
B)   immunity; allergens.
C)   an allergy; allergens.
D)   an allergy; IgG.
E)   immunity; antibodies.F) B) and D)
G) C) and D)

Question 18

Antibodies are ___ proteins while antigens are ___ proteins.

Accepted Answer

A)   bacterial; self-produced
B)   self-produced; foreign
C)   self-produced; also self-produced
D)   cancer; bacterial
E)   viral; self-producedF) B) and E)
G) All of the above

Question 19

When a disease has been fought off by the immune system,what happens to the leftover cells that were produced by the immune system to fight the disease?

Accepted Answer

A)   Apoptosis occurs.
B)   They are saved for later use.
C)   They are stored in thymus gland.
D)   They destroyed by bone marrow.
E)   They are killed by cytotoxic T cells.F) All of the above
G) A) and D)

Question 20

Which body system plays the greatest role in fighting cancer?

Accepted Answer

A)   immune system
B)   cardiovascular system
C)   neural system
D)   digestive system
E)   integumentary systemF) B) and E)
G) A) and B)

Exam 26: Defenses Against Disease

Which cell type plays a role in adaptive immunity in the body?

Correct AnswerverifiedShow Answer

Antibodies are ___ proteins while antigens are ___ proteins.

Correct AnswerverifiedShow Answer

Which of the statistics regarding the number of cases of HIV is NOT true?

Correct AnswerverifiedShow Answer

When a person is hypersensitive to pollen,they have ________ in response to the antigens on pollen called

Correct AnswerverifiedShow Answer

One way the complement system acts is by producing

Correct AnswerverifiedShow Answer

This figure represents

Correct AnswerverifiedShow Answer

_______ cells are non-specific,destroying cells which do not exhibit "self" proteins.

Correct AnswerverifiedShow Answer

Neutrophils and macrophages are different in that

Correct AnswerverifiedShow Answer

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

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

Which autoimmune disorder is a breakdown of the myelin sheaths on the nerve cells?

Correct AnswerverifiedShow Answer

Which statement about delayed allergic reactions is the most accurate?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Immediate allergic responses occur when

Correct AnswerverifiedShow Answer

Which body system plays the greatest role in fighting cancer?

Correct AnswerverifiedShow Answer

Which of the following statements is correct about the usage of a booster?

Correct AnswerverifiedShow Answer

When a disease has been fought off by the immune system,what happens to the leftover cells that were produced by the immune system to fight the disease?

Correct AnswerverifiedShow Answer

T lymphocytes mature in the

Correct AnswerverifiedShow Answer

HIV is contracted mainly by rectal intercourse.

Correct AnswerverifiedShow Answer

Macrophages present antigens to T cells by digesting the pathogen and placing the pathogen's antigens on the macrophage plasma membrane along with an MHC "self" protein.

Correct AnswerverifiedShow Answer

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