Question 1

Red bone marrow in adults produces only white blood cells.

Accepted Answer

A) True 
 B)False

Question 2

Which autoimmune disorder is characterized by 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) A) and E)
G) A) and D)

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

Question 4

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 individual's immune response.
E)   The booster will initiate the immune response.F) A) and C)
G) B) and E)

Question 5

The cells labeled "B"

Accepted Answer

A)   produce cytokines that stimulate other types of immune cells.
B)   destroy virus-infected cells through phagocytosis.
C)   produce perforins and granzymes that destroy cancer cells.
D)   produce histamine to induce the inflammatory response.
E)   produce specific antibodies.F) A) and E)
G) None of the above

Question 6

Which of the following bones does not contain red bone marrow in an adult?

Accepted Answer

A)   pelvic bones
B)   sternum
C)   clavicle
D)   vertebrae
E)   carpalsF) A) and C)
G) B) and E)

Question 7

Which one of the following is a method of treatment for HIV infections?

Accepted Answer

A)   chemotherapy
B)   radiation treatment
C)   blood transfusion
D)   herbal supplements
E)   drug therapyF) A) and E)
G) A) and D)

Question 8

During the inflammatory response, histamine may be released by

Accepted Answer

A)   mast cells.
B)   neutrophils.
C)   B lymphocytes.
D)   macrophages.
E)   natural killer cells.F) B) and D)
G) B) and E) A

Question 9

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) B) and E)

Question 10

When the body responds against its own cells as foreign antigens, this results in

Accepted Answer

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

Question 11

Which of the following shows the function of cytotoxic T cells in the 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 toF) B) and D)
G) C) and D)

Question 12

Which one of the following is not a symptom of an HIV infection?

Accepted Answer

A)   progression into AIDS
B)   number of T cells decreases
C)   hair loss
D)   chronic fever
E)   Kaposi sarcoma, a form of cancerF) C) and E)
G) A) and D)

Question 13

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 14

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

Question 15

AIDS is caused by

Accepted Answer

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

Question 16

Which of the following is not a lymphatic organ?

Accepted Answer

A)   thymus
B)   spleen
C)   pancreas
D)   bone marrow
E)   lymph nodeF) B) and D)
G) A) and B)

Question 17

The secretions of the structure lettered "A" in the figure shown here

Accepted Answer

A)   contain substances that will weaken or kill some bacteria on the skin.
B)   cool the body through evaporative cooling.
C)   release white blood cells on the surface of the skin.
D)   are part of the body's specific defenses against disease.
E)   attract white blood cells to cuts in order to fight infections.F) B) and C)
G) A) and B)

Question 18

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

Question 19

The letter "A" in the figure shown here is referring to an)

Accepted Answer

A)   sweat gland.
B)   oil sebaceous)  gland.
C)   salivary gland.
D)   blood vessel.
E)   lymph node.F) A) and B)
G) A) and C)

Question 20

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 2014, there were about 10 million people living worldwide with HIV.
C)   In 2014, among the 2 million new HIV infections, nearly 11% were in people under the age of 15.
D)   In 2014, HIV/AIDS claimed 1.2 million lives.
E)   Heterosexual contact and intravenous drug use together account for a greater percentage of new cases than male-to-male contact.F) None of the above
G) A) and D)

Exam 26: Defenses Against Disease

Red bone marrow in adults produces only white blood cells.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

One way the complement system acts is by producing

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The cells labeled "B"

Correct AnswerverifiedShow Answer

Which of the following bones does not contain red bone marrow in an adult?

Correct AnswerverifiedShow Answer

Which one of the following is a method of treatment for HIV infections?

Correct AnswerverifiedShow Answer

During the inflammatory response, histamine may be released by

Correct AnswerverifiedA

Which of the following is not true about passive immunity?

Correct AnswerverifiedShow Answer

When the body responds against its own cells as foreign antigens, this results in

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which one of the following is not a symptom of an HIV infection?

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

After organ transplantation, immunosuppressive drugs are given that

Correct AnswerverifiedC

AIDS is caused by

Correct AnswerverifiedShow Answer

Which of the following is not a lymphatic organ?

Correct AnswerverifiedShow Answer

The secretions of the structure lettered "A" in the figure shown here

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 AnswerverifiedC

The letter "A" in the figure shown here is referring to an)

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
C

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
C

Correct Answer
verified

Correct Answer
verified