Question 1

Cytotoxic T-cells attack

Accepted Answer

A)   viruses.
B)   bacteria.
C)   cells that display foreign proteins on their surface.
D)   cells that display normal proteins on their surface.
E)   viruses and bacteria.F) B) and E)
G) D) and E)

Question 2

Positive selection of lymphocytes refers to the

Accepted Answer

A)   processing of an antigen by a macrophage.
B)   proliferation of natural killer cells.
C)   production of antigen-specific antibodies.
D)   survival of pre-B and pre-T cells that are capable of an immune response.
E)   replication of memory cells.F) B) and C)
G) All of the above

Question 3

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

Question 4

Which is the proper order of events in cell-mediated immunity? (1)  cloning of cytotoxic T cells and memory T cells
(2)  antigen presented to T lymphocyte
(3)  activation of T lymphocytes
(4)  cytotoxic T cells attack target cells

Accepted Answer

A)   2, 3, 4, 1
B)   1, 4, 2, 3
C)   2, 3, 1, 4
D)   3, 2, 4, 1
E)   1, 2, 3, 4,F) B) and E)
G) D) and E)

Question 5

Cytotoxic T cells recognize

Accepted Answer

A)   receptors on B cells
B)   fragments of self proteins of infected cells
C)   viral antigens and class I MHC
D)   viral antigens and class II MHC
E)   all of theseF) None of the above
G) C) and D)

Question 6

Cytotoxic T-cells interact with Class II major histocompatibility complex (MHC) proteins.

Accepted Answer

A) True 
 B)False

Question 7

What is the nonspecific lymphocyte that kills tumor cells and virus infected cells?

Accepted Answer

A)   Macrophages
B)   Natural killer cells
C)   Eosinophils
D)   BasophilsE) B) and D)
F) B) and C)

Question 8

Lymph

Accepted Answer

A)   Is found only when there is a pathological condition that allows it to leak from capillaries
B)   Is excess interstitial fluid
C)   Is filtered by the spleen
D)   Is synthesized by the lymphoid organs
E)   All choices are correctF) A) and E)
G) A) and B)

Question 9

In IgE mediated hypersensitivity, all of the following are needed except

Accepted Answer

A)   antigen presenting cell
B)   B cell
C)   IgE antibody
D)   mast cell
E)   neutrophilF) None of the above
G) B) and E)

Question 10

Complement factors are named in the order in which they function.

Accepted Answer

A)   True
B)   FalseC) A) and B)
D) undefined

Question 11

A person with type AB blood may receive

Accepted Answer

A)   type A blood
B)   type B blood
C)   type AB blood
D)   type O blood
E)   all of theseF) B) and E)
G) C) and E)

Question 12

Foreign substances that elicit an immune response are termed

Accepted Answer

A)   aliens.
B)   antigens.
C)   antibodies.
D)   viruses.
E)   bacteria.F) C) and E)
G) A) and D)

Question 13

The ability for adaptive immunity to improve the immune response to a particular pathogen over subsequent exposures is referred to as

Accepted Answer

A)   specificity.
B)   memory.
C)   resistance.
D)   adaptability.
E)   hypersensitivity.F) B) and C)
G) A) and E)

Question 14

Histamine is released from mast cells.

Accepted Answer

A) True 
 B)False

Question 15

Bacterial cells

Accepted Answer

A)   have one identifiable antigen that binds antibody
B)   have two epitopes per cell
C)   have many different epitopes, which each bind to specific antibodies
D)   have many different epitopes, which all bind to the same antibody
E)   are not antigenicF) A) and D)
G) All of the above

Question 16

The sequence for the processing of proteins produced within the cell is...

Accepted Answer

A)   Proteins are broken into fragments, transported to the rough endoplasmic reticulum, fuse with a Golgi vesicle containing class II MHCs, and this complex is transported to the plasma membrane.
B)   Proteins are broken into fragments within a vesicle, which fuses with a Golgi vesicle containing class I MHCs, and this complex is transported to the plasma membrane.
C)   Proteins are broken into fragments within a vesicle, which fuses with a Golgi vesicle containing class II MHCs, and this complex is transported to the plasma membrane.
D)   Proteins are broken into fragments, transported to the rough endoplasmic reticulum, combined with class II MHCs, move to the Golgi apparatus, then to the plasma membrane.
E)   Proteins are broken into fragments, transported to the rough endoplasmic reticulum, combined with class I MHCs, move to the Golgi apparatus, then to the plasma membrane.F) B) and E)
G) B) and C)

Question 17

The secondary immune response to a previously encountered pathogen is swifter and stronger than the primary immune response.

Accepted Answer

A) True 
 B)False

Question 18

Foreign antigens presented on class I MHC molecules

Accepted Answer

A)   stimulate other immune system cells to respond to the antigen.
B)   stimulate macrophages to respond to the antigen.
C)   stimulate cell destruction by macrophages.
D)   stimulate cell destruction by activated T-cells.
E)   are not recognized by the T-cells and do not stimulate cell destruction.F) C) and E)
G) D) and E)

Question 19

IgE molecules attach to

Accepted Answer

A)   mast cells via their variable region
B)   mast cells by their constant region
C)   T helper cells by their variable region
D)   plasma cells by their constant regionE) A) and C)
F) A) and B)

Question 20

A T helper cell must become activated before it can stimulate a B cell to produce antibody.

Accepted Answer

A)   True
B)   FalseC) A) and B)
D) undefined

Exam 14: The Lymphatic System and Immunity

A T helper cell must become activated before it can stimulate a B cell to produce antibody.

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Cytotoxic T-cells interact with Class II major histocompatibility complex (MHC) proteins.

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Foreign antigens presented on class I MHC molecules

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What is the nonspecific lymphocyte that kills tumor cells and virus infected cells?

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IgE molecules attach to

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Cytotoxic T cells recognize

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Lymph

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Positive selection of lymphocytes refers to the

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In IgE mediated hypersensitivity, all of the following are needed except

Correct AnswerverifiedShow Answer

Foreign substances that elicit an immune response are termed

Correct AnswerverifiedShow Answer

Histamine is released from mast cells.

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Cytotoxic T-cells attack

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Complement factors are named in the order in which they function.

Correct AnswerverifiedShow Answer

A person with type AB blood may receive

Correct AnswerverifiedShow Answer

The sequence for the processing of proteins produced within the cell is...

Correct AnswerverifiedShow Answer

The secondary immune response to a previously encountered pathogen is swifter and stronger than the primary immune response.

Correct AnswerverifiedShow Answer

Which is the proper order of events in cell-mediated immunity? (1) cloning of cytotoxic T cells and memory T cells (2) antigen presented to T lymphocyte (3) activation of T lymphocytes (4) cytotoxic T cells attack target cells

Correct AnswerverifiedShow Answer

The ability for adaptive immunity to improve the immune response to a particular pathogen over subsequent exposures is referred to as

Correct AnswerverifiedShow Answer

Germinal centers are the sites of

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Bacterial cells

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