Question 1

-This diagram illustrates the effects of antibodies. What effect does "A" represent?

Accepted Answer

A)   activation of complement cascade
B)   facilitation of phagocytosis
C)   initiates release of inflammatory chemicals
D)   binds antigens together
E)   inactivation of antigensF) A) and B)
G) A) and C)

Question 2

Match the term or description to the type of hypersensitivity.
-allergic reaction

Accepted Answer

A)  immediate hypersensitivity
B)  delayed hypersensitivityC) A) and B)
D) undefined

Question 3

The inflammatory response

Accepted Answer

A)   prevents the spread of an infection.
B)   stimulates erythrocytes to leave the blood.
C)   delays healing of damaged tissues.
D)   depresses immunity.
E)   is harmful and should be immediately reversed.F) B) and D)
G) A) and D)

Question 4

Different T-cell receptors can respond to different antigens because of different

Accepted Answer

A)   variable regions in the structure of the receptors.
B)   epitopes in the receptor's structure.
C)   selection processes.
D)   complement binding sites in the receptors.
E)   antigenic determinants.F) A) and E)
G) A) and D)

Question 5

In systemic inflammation, pyrogens

Accepted Answer

A)   decrease phagocytosis.
B)   decrease vasodilation.
C)   increase neutrophil production.
D)   stimulate fever production.
E)   are chemotaxic factors.F) C) and D)
G) A) and B)

Question 6

Interferon

Accepted Answer

A)   directly attacks viruses.
B)   protects cells that have been invaded by viruses.
C)   increases vascular permeability.
D)   is not produced by most cells.
E)   is a protein that interferes with virus production and infection.F) C) and D)
G) A) and B)

Question 7

Which of the following will increase your risk of contracting the HIV virus?

Accepted Answer

A)   use of a condom during intercourse
B)   heat treatment of clotting factors prior to transfusion
C)   use of contaminated needles
D)   reduction in the number of sexual partners
E)   abstinenceF) B) and D)
G) C) and D)

Question 8

Germinal centers are the sites of

Accepted Answer

A)   increased blood flow to the lymph nodes.
B)   fluid production.
C)   increased flow of lymph from infected tissues.
D)   entrance of lymph into lymph nodes.
E)   proliferation of lymphocytes in the lymph nodes.F) C) and D)
G) A) and E)

Question 9

As a result of opsonization,

Accepted Answer

A)   holes are produced in target cell membranes.
B)   organ transplant rejection occurs.
C)   antigens are more susceptible to phagocytosis.
D)   antigens clump together.
E)   inflammation, chemotaxis, and lysis occur.F) A) and E)
G) None of the above

Question 10

Transfusing a person with plasma proteins from a person or an animal that has been actively immunized against a specific antigen provides

Accepted Answer

A)   active immunity.
B)   passive immunity.
C)   no immunity.
D)   autoimmunity.
E)   natural immunity.F) A) and B)
G) C) and E)

Question 11

Complement proteins

Accepted Answer

A)   can form holes in the plasma membrane of target cells.
B)   are on the surface of macrophages.
C)   are hormones found in the blood.
D)   may cause the release of interferon.
E)   do not attract neutrophils, monocytes, macrophages, or eosinophils.F) A) and B)
G) A) and C)

Question 12

Natural Killer (NK)  cells

Accepted Answer

A)   a type of macrophage.
B)   are a type of plasma cell.
C)   secrete enzymes that kill tumor or virus-infected cells.
D)   are derived from B cells.
E)   promote inflammation.F) A) and B)
G) B) and E)

Question 13

Lymph capillaries are found in the

Accepted Answer

A)   epidermis.
B)   cornea.
C)   bone marrow.
D)   central nervous system.
E)   dermis.F) B) and D)
G) C) and D)

Question 14

Stimulating the proliferation of cytotoxic T cells to destroy cancer cells is an example of

Accepted Answer

A)   immunotherapy.
B)   immunocompetence.
C)   tolerance.
D)   passive artificial acquired immunity.
E)   passive natural acquired immunity.F) A) and D)
G) C) and E)

Question 15

Match the cell of adaptive immunity with its function.
-plasma cell

Accepted Answer

A)  quick and responsive to antigen, remembers previous exposure
B)  after activitaion, differentiates to become plasma cell or memory B cell
C)  produces antibodies
D)  destroys cells by lysis or by production of cytokines
E)  activates B and effector T cellsF) A) and B)
G) None of the above

Question 16

A protein that helps to protect the body against viral infections is

Accepted Answer

A)   complement.
B)   interferon.
C)   lysozyme.
D)   histamine.
E)   kinin.F) C) and D)
G) None of the above

Question 17

Macrophages

Accepted Answer

A)   are derived from basophils.
B)   reduce the inflammatory response.
C)   are responsible for most phagocytic activity in the late stages of an infection.
D)   produce cytokines that aid in the destruction of antigens.
E)   are the first at the site of infection.F) All of the above
G) B) and D)

Question 18

The effects of cell-mediated immunity are the result of activities of

Accepted Answer

A)   B cells.
B)   cytotoxic T cells.
C)   macrophages.
D)   dendritic cells.
E)   helper T cells.F) D) and E)
G) B) and D)

Question 19

Match the appropriate characteristic with the type of immunity.
-B cells

Accepted Answer

A)  innate immunity
B)  antibody-mediated immunity
C)  cell-mediated immunity
D)  both antibody and cell-mediated immunity
E)  innate immunity, antibody-mediated immunity and cell-mediated immunityF) A) and B)
G) B) and D)

Question 20

Which of the following is true of adaptive immunity?

Accepted Answer

A)   It is present at birth.
B)   Previous encounters with the foreign substance does not change the response.
C)   The second response is faster and stronger than the first response.
D)   Responses are general, not specific.E) A) and D)
F) All of the above

Exam 22: Lymphatic System and Immunity

Match the cell of adaptive immunity with its function. -plasma cell

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Match the appropriate characteristic with the type of immunity. -B cells

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Lymph capillaries are found in the

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In systemic inflammation, pyrogens

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Different T-cell receptors can respond to different antigens because of different

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Stimulating the proliferation of cytotoxic T cells to destroy cancer cells is an example of

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-This diagram illustrates the effects of antibodies. What effect does "A" represent?

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Match the term or description to the type of hypersensitivity. -allergic reaction

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Natural Killer (NK) cells

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Macrophages

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A protein that helps to protect the body against viral infections is

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Which of the following will increase your risk of contracting the HIV virus?

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Germinal centers are the sites of

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The effects of cell-mediated immunity are the result of activities of

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As a result of opsonization,

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Complement proteins

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Interferon

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Which of the following is true of adaptive immunity?

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The inflammatory response

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Transfusing a person with plasma proteins from a person or an animal that has been actively immunized against a specific antigen provides

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