Question 1

T cells or B cells that are capable of responding to a specific antigen by binding to it with antigen-specific receptors that appear on the lymphocyte's surface are considered ________.

Accepted Answer

A)   clones
B)   complement
C)   self-tolerant
D)   immunocompetentE) A) and B)
F) C) and D)

Question 2

The nonspecific defense by which complement proteins attach to sugars or proteins on the surface of foreign cells is called complement fixation.

Accepted Answer

A) True 
 B)False

Question 3

A(n)  ________ is any substance capable of mobilizing our immune system and provoking an immune response.

Accepted Answer

A)   interferon
B)   antibody
C)   antigen
D)   pyrogenE) B) and C)
F) A) and B)

Question 4

Using Figure 12.1, identify the following:
-Lymphatic collecting vessels are indicated by ________.

Accepted Answer

A)   Label A
B)   Label B
C)   Label C
D)   Label D
E)   Label EF) C) and E)
G) B) and D)

Question 5

Match the following biological function with its antibody class:
-Cell that develops immunocompetence in the bone marrow

Accepted Answer

A)  Helper T cell
B)  Antigen-presenting cell (AP
C)  
C)  Cytotoxic T cell
D)  Regulatory T cell
E)  Memory cellF) Plasma cellG) B cellH) B) and C)
I) A) and D)

Question 6

Xenografts are ideal donor organs or tissues since they rarely cause rejection.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following is NOT applicable to the third line of defense?

Accepted Answer

A)   This system recognizes and acts against particular pathogens or foreign substances.
B)   Humoral immunity is provided by antibodies in the body's fluids.
C)   The injection of serum containing antibodies will always provide immunity against disease.
D)   Immunity in this system is not restricted to the initial infection site.
E)   This system recognizes and mounts even stronger attacks on previously encountered pathogens.F) All of the above
G) C) and D)

Question 8

The most important function of the thymus gland is to destroy worn-out red blood cells and return some of the products to the liver.

Accepted Answer

A) True 
 B)False

Question 9

What are T lymphocytes (T cells)  and B lymphocytes (B cells)  self-tolerant of?

Accepted Answer

A)   fungi
B)   foreign blood cells
C)   the body's own cells
D)   viruses
E)   bacteriaF) B) and D)
G) B) and E)

Question 10

Large antigen-antibody complexes can become insoluble and settle out of solution, a reaction called ________.

Accepted Answer

A)   neutralization
B)   complement fixation
C)   precipitation
D)   agglutinationE) All of the above
F) B) and C)

Question 11

Which of the following is NOT one of the mucosa-associated lymphoid tissues (MALT) ?

Accepted Answer

A)   tonsils
B)   appendix
C)   lymph nodes
D)   Peyer's patchesE) A) and B)
F) A) and C)

Question 12

Which portion of the antibody's structure determines the antibody's class?

Accepted Answer

A)   variable region
B)   heavy chain
C)   constant region
D)   disulfide bonds
E)   light chainF) A) and B)
G) None of the above

Question 13

Antigen presentation is essential for the activation of clonal selection of T cells.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following best describes positive chemotaxis?

Accepted Answer

A)   the movement of neutrophils through capillary walls
B)   the movement of cells toward a high concentration of signaling molecules
C)   the dilation of blood vessels, which causes local edema
D)   the release of a lytic chemical by perforins
E)   the limitation of joint movementF) A) and E)
G) B) and C)

Question 15

What are tissue grafts harvested from a different animal species called?

Accepted Answer

A)   xenografts
B)   autografts
C)   allografts
D)   isograftsE) B) and C)
F) A) and B)

Question 16

Artificially acquired passive immunity is conferred when one receives immune serum for poisonous snake bites.

Accepted Answer

A) True 
 B)False

Question 17

Which one of the following is NOT True of the constant (C)  regions of antibodies?

Accepted Answer

A)   The constant regions are the same or nearly the same on all antibodies of a given class.
B)   The constant regions form the "stem" of an antibody.
C)   The constant regions determine the specific type of antibody class formed.
D)   The constant regions form an antigen-binding site.
E)   The constant regions determine how an antibody class will carry out its immune role.F) None of the above
G) C) and D)

Question 18

Where do B cells develop immunocompetence?

Accepted Answer

A)   thymus gland
B)   bone marrow
C)   spleen
D)   thyroid gland
E)   lymph nodesF) B) and E)
G) A) and D)

Question 19

Explain how the innate and adaptive immune systems differ in their responses to foreign substances.

Accepted Answer

The innate immune system is the system w...

Question 20

Which blood vessels receive lymph from the right lymphatic duct and the thoracic duct?

Accepted Answer

A)   inferior vena cava
B)   subclavian veins
C)   external jugular veins
D)   subclavian arteries
E)   aortaF) A) and E)
G) B) and C)

Exam 12: The Lymphatic System and Body Defenses

Explain how the innate and adaptive immune systems differ in their responses to foreign substances.

Correct AnswerverifiedThe innate immune system is the system w...View AnswerShow Answer

A(n) ________ is any substance capable of mobilizing our immune system and provoking an immune response.

Correct AnswerverifiedShow Answer

T cells or B cells that are capable of responding to a specific antigen by binding to it with antigen-specific receptors that appear on the lymphocyte's surface are considered ________.

Correct AnswerverifiedShow Answer

Which one of the following is NOT True of the constant (C) regions of antibodies?

Correct AnswerverifiedShow Answer

Which blood vessels receive lymph from the right lymphatic duct and the thoracic duct?

Correct AnswerverifiedShow Answer

Using Figure 12.1, identify the following: -Lymphatic collecting vessels are indicated by ________.

Correct AnswerverifiedShow Answer

Artificially acquired passive immunity is conferred when one receives immune serum for poisonous snake bites.

Correct AnswerverifiedShow Answer

The nonspecific defense by which complement proteins attach to sugars or proteins on the surface of foreign cells is called complement fixation.

Correct AnswerverifiedShow Answer

Which of the following best describes positive chemotaxis?

Correct AnswerverifiedShow Answer

Xenografts are ideal donor organs or tissues since they rarely cause rejection.

Correct AnswerverifiedShow Answer

What are T lymphocytes (T cells) and B lymphocytes (B cells) self-tolerant of?

Correct AnswerverifiedShow Answer

What are tissue grafts harvested from a different animal species called?

Correct AnswerverifiedShow Answer

Match the following biological function with its antibody class: -Cell that develops immunocompetence in the bone marrow

Correct AnswerverifiedShow Answer

Where do B cells develop immunocompetence?

Correct AnswerverifiedShow Answer

Which of the following is NOT applicable to the third line of defense?

Correct AnswerverifiedShow Answer

Large antigen-antibody complexes can become insoluble and settle out of solution, a reaction called ________.

Correct AnswerverifiedShow Answer

The most important function of the thymus gland is to destroy worn-out red blood cells and return some of the products to the liver.

Correct AnswerverifiedShow Answer

Which of the following is NOT one of the mucosa-associated lymphoid tissues (MALT) ?

Correct AnswerverifiedShow Answer

Which portion of the antibody's structure determines the antibody's class?

Correct AnswerverifiedShow Answer

Antigen presentation is essential for the activation of clonal selection of T cells.

Correct AnswerverifiedShow Answer

Correct Answer
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The innate immune system is the system w...
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