Question 1

Bacteria that are removed from the upper respiratory tract by cilia are often destroyed 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 2

Which of the statistics regarding the number of cases of HIV is inaccurate?

Accepted Answer

A)   Male-to-male contact accounts for the greatest number of new cases each year.
B)   As of 2017, there were about 25 million people living worldwide with HIV.
C)   In 2017, among the 1.8 million new HIV infections, nearly 10% were in people under the age of 15.
D)   In 2017, HIV/AIDS claimed 940,000 lives.
E)   Heterosexual contact and intravenous drug use together account for a greater percentage of new cases than male-to-male contact.F) A) and B)
G) B) and D)

Question 3

Active and passive immunity involves all of the following except

Accepted Answer

A)   exposure to a pathogen either naturally or by vaccination.
B)   memory B cells responding to a second exposure to the same pathogen.
C)   receiving mother's antibodies through the placenta.
D)   receiving mother's antibodies through breast-feeding.
E)   the stimulation of a nonspecific immune defense.F) B) and D)
G) B) and E)

Question 4

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

Question 5

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) A) and D)
G) B) and D)

Question 6

During tissue transplant, what is the main reason for the rejection of the transplanted tissue?

Accepted Answer

A)   Cytotoxic T cells and antibodies in the body destroy the transplanted tissue.
B)   Helper T cells and antibodies in the body destroy the transplanted tissue.
C)   Cytotoxic T cells and antibodies will reroute the blood supply away from the transplanted tissue, starving it to death.
D)   The host body's antigens will not allow the transplanted tissue to attach to the host.
E)   The host body red blood cells will not carry oxygen to the transplanted tissue.F) A) and D)
G) B) and E)

Question 7

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

Accepted Answer

A) True 
 B)False

Question 8

After organ transplantation, immunosuppressive drugs are given that

Accepted Answer

A)   stimulate T cell response to cytokines.
B)   increase the production of histamines.
C)   inhibit T cell response to cytokines.
D)   both stimulate T cell response to cytokines and increase the production of histamines.
E)   stimulate phagocytosis by macrophages.F) B) and E)
G) A) and B)

Question 9

Which of the following is a lymphatic organ?

Accepted Answer

A)   thymus
B)   spleen
C)   bone marrow
D)   lymph node
E)   All of the above are organs of the lymphatic system.F) None of the above
G) A) and D)

Question 10

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. Persons of what blood type can receive a transfusion of Steve's blood?

Accepted Answer

A)   AB only
B)   AB and O
C)   A, B, AB, and O
D)   A, B, and AB
E)   A and BF) B) and C)
G) A) and C)

Question 11

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

Accepted Answer

A)   many lymph nodes are near the surface of the body.
B)   all lymph nodes are near the surface of the body.
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 E)
G) D) and E)

Question 12

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

Accepted Answer

A)   The remaining cells undergo apoptosis.
B)   The remaining cells are saved for later use.
C)   The remaining cells are stored in the thymus gland.
D)   The remaining cells are destroyed by bone marrow.
E)   The remaining cells are killed by cytotoxic T cells.F) B) and E)
G) A) and B)

Exam 26: Defenses Against Disease

Bacteria that are removed from the upper respiratory tract by cilia are often destroyed by

Correct Answer
verified

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

Correct Answer
verified

Correct Answer
verified

During tissue transplant, what is the main reason for the rejection of the transplanted tissue?

Correct Answer
verified

Which body system plays the greatest role in fighting cancer?

Correct Answer
verified

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

Correct Answer
verified

Which of the statistics regarding the number of cases of HIV is inaccurate?

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

Which of the following is a lymphatic organ?

Correct Answer
verified

After organ transplantation, immunosuppressive drugs are given that

Correct Answer
verified

Active and passive immunity involves all of the following except

Correct Answer
verified

Exam 26: Defenses Against Disease

Bacteria that are removed from the upper respiratory tract by cilia are often destroyed by

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

During tissue transplant, what is the main reason for the rejection of the transplanted tissue?

Correct AnswerverifiedShow Answer

Which body system plays the greatest role in fighting cancer?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the statistics regarding the number of cases of HIV is inaccurate?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is a lymphatic organ?

Correct AnswerverifiedShow Answer

After organ transplantation, immunosuppressive drugs are given that

Correct AnswerverifiedShow Answer

Active and passive immunity involves all of the following except

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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