Question 1

T cells are divided into two primary groups, effector and regulatory. Which of the following are regulatory T cells?

Accepted Answer

A)  helper T cells 
B)  cytotoxic T cells 
C)  chemotaxic T cells 
D)  delayed hypersensitivity T cells 
E)  assistant T cells 
A)  helper T cells 
B)  cytotoxic T cells 
C)  chemotaxic T cells 
D)  delayed hypersensitivity T cells 
E)  assistant T cells A

Question 2

Cytotoxic T cells produce

Accepted Answer

A)  class II MHCs 
B)  self proteins 
C)  antibodies, which make holes in cell membrane of infected cells 
D)  perforin, which makes holes in cell membrane of infected cells 
A)  class II MHCs 
B)  self proteins 
C)  antibodies, which make holes in cell membrane of infected cells 
D)  perforin, which makes holes in cell membrane of infected cells D

Question 3

In the presence of activated complement, neutrophils

Accepted Answer

A)  are repelled 
B)  produce histamine 
C)  cause vasodilation 
D)  degranulate and release enzymes that cause tissue damage 
A)  are repelled 
B)  produce histamine 
C)  cause vasodilation 
D)  degranulate and release enzymes that cause tissue damage D

Question 4

Helper T cells can stimulate the proliferation of cytotoxic T cells but not that of B cells.

Accepted Answer

A) True 
 B)False

Question 5

A hypersensitivity reaction occurs

Accepted Answer

A)  during the first exposure to an antigen. 
B)  during a second or subsequent exposure to an antigen. 
C)  in individuals with diseases of the immune system. 
D)  only in children. 
E)  only in individuals with asthma. 
A)  during the first exposure to an antigen. 
B)  during a second or subsequent exposure to an antigen. 
C)  in individuals with diseases of the immune system. 
D)  only in children. 
E)  only in individuals with asthma.

Question 6

Arrange the following events in the proper order in which they occur during an allergic response. 1 = Individual experiences symptoms
2 = Individual is sensitized to antigen
3 = IgE attaches to mast cells
4 = Antigen binds to IgE

Accepted Answer

A)  1, 2, 3, 4 
B)  1, 3, 4, 2 
C)  2, 3, 1, 4 
D)  2, 3, 4, 1 
E)  2, 4, 3, 1 
A)  1, 2, 3, 4 
B)  1, 3, 4, 2 
C)  2, 3, 1, 4 
D)  2, 3, 4, 1 
E)  2, 4, 3, 1

Question 7

Helper T cells interact with target cells by recognizing

Accepted Answer

A)  antigens only. 
B)  MHC proteins only. 
C)  antigen-MHC protein complexes. 
D)  either antigens or MHC proteins. 
E)  neither antigens nor MHC proteins. 
A)  antigens only. 
B)  MHC proteins only. 
C)  antigen-MHC protein complexes. 
D)  either antigens or MHC proteins. 
E)  neither antigens nor MHC proteins.

Question 8

Most intermediate size antigen antibody complexes are removed by phagocytosis.

Accepted Answer

A)  True 
B)  False 
A)  True 
B)  False

Question 9

Which of the following is the molecule that displays an antigen on the surface of cells?

Accepted Answer

A)  Antigenic determinant 
B)  Antibody 
C)  Antigen receptor 
D)  Major histocompatibility complex molecule 
A)  Antigenic determinant 
B)  Antibody 
C)  Antigen receptor 
D)  Major histocompatibility complex molecule

Question 10

What is the cell that is responsible for a secondary antibody response to an antigen?

Accepted Answer

A)  Memory B cell 
B)  Plasma cell 
C)  Cytotoxic T cell 
D)  All of the above are responsible 
A)  Memory B cell 
B)  Plasma cell 
C)  Cytotoxic T cell 
D)  All of the above are responsible

Question 11

Immune complexes consist of

Accepted Answer

A)  antibody plus complement 
B)  basophil plus complement 
C)  antigen plus antibody 
D)  antigen plus complement 
A)  antibody plus complement 
B)  basophil plus complement 
C)  antigen plus antibody 
D)  antigen plus complement

Question 12

Skin lesions due to hypersensitivity appear

Accepted Answer

A)  24 hours after first exposure to antigen 
B)  48-72 hours after first exposure to antigen 
C)  24 hours after second exposure to antigen 
D)  3 weeks after second exposure to antigen 
A)  24 hours after first exposure to antigen 
B)  48-72 hours after first exposure to antigen 
C)  24 hours after second exposure to antigen 
D)  3 weeks after second exposure to antigen

Question 13

With advancing age, the lymphatic system

Accepted Answer

A)  Becomes less efficient at absorbing dietary lipids 
B)  Ceases to transport lymph 
C)  Produces an increasing number and variety of B-lymphocytes 
D)  Is less responsive to antigens 
E)  All choices are correct 
A)  Becomes less efficient at absorbing dietary lipids 
B)  Ceases to transport lymph 
C)  Produces an increasing number and variety of B-lymphocytes 
D)  Is less responsive to antigens 
E)  All choices are correct

Question 14

Many different antibodies can be made against a single antigen.

Accepted Answer

A)  True 
B)  False 
A)  True 
B)  False

Question 15

Tonsils

Accepted Answer

A)  increase in size in adults. 
B)  are located in both the oral and abdominal cavities. 
C)  provide protection against bacteria entering the oral and nasal cavities. 
D)  contain red pulp and white pulp. 
E)  are not functional in children. 
A)  increase in size in adults. 
B)  are located in both the oral and abdominal cavities. 
C)  provide protection against bacteria entering the oral and nasal cavities. 
D)  contain red pulp and white pulp. 
E)  are not functional in children.

Question 16

Histamine released by mast cells leads to all of the following symptoms except

Accepted Answer

A)  capillary dilation 
B)  airway constriction 
C)  high fever 
D)  mucus secretion 
E)  itching 
A)  capillary dilation 
B)  airway constriction 
C)  high fever 
D)  mucus secretion 
E)  itching

Question 17

People with type O blood can be universal donors because their red blood cells do not contain either A antigen or B antigen on their surface.

Accepted Answer

A)  True 
B)  False 
A)  True 
B)  False

Question 18

For a hypersensitivity response to occur, two bound IgE molecules on a mast cell must react with a specific antigen.

Accepted Answer

A)  True 
B)  False 
A)  True 
B)  False

Question 19

An antigen presenting cell presents antigen to a T helper cell

Accepted Answer

A)  inside a vesicle 
B)  on its surface on a class I MHC 
C)  on its surface on a class II MHC 
D)  on its surface attached to an antibody 
A)  inside a vesicle 
B)  on its surface on a class I MHC 
C)  on its surface on a class II MHC 
D)  on its surface attached to an antibody

Question 20

An individual antibody is made against

Accepted Answer

A)  a whole bacterial cell 
B)  one epitope on the cell 
C)  one antigen on the cell 
D)  all of the combined antigenic determinants on a cell 
E)  the cell's DNA 
A)  a whole bacterial cell 
B)  one epitope on the cell 
C)  one antigen on the cell 
D)  all of the combined antigenic determinants on a cell 
E)  the cell's DNA

T cells are divided into two primary groups, effector and regulatory. Which of the following are regulatory T cells?

Cytotoxic T cells produce

In the presence of activated complement, neutrophils

Helper T cells can stimulate the proliferation of cytotoxic T cells but not that of B cells.

A hypersensitivity reaction occurs

Arrange the following events in the proper order in which they occur during an allergic response. 1 = Individual experiences symptoms 2 = Individual is sensitized to antigen 3 = IgE attaches to mast cells 4 = Antigen binds to IgE

Helper T cells interact with target cells by recognizing

Most intermediate size antigen antibody complexes are removed by phagocytosis.

Which of the following is the molecule that displays an antigen on the surface of cells?

What is the cell that is responsible for a secondary antibody response to an antigen?

Immune complexes consist of

Skin lesions due to hypersensitivity appear

With advancing age, the lymphatic system

Many different antibodies can be made against a single antigen.

Tonsils

Histamine released by mast cells leads to all of the following symptoms except

People with type O blood can be universal donors because their red blood cells do not contain either A antigen or B antigen on their surface.

For a hypersensitivity response to occur, two bound IgE molecules on a mast cell must react with a specific antigen.

An antigen presenting cell presents antigen to a T helper cell

An individual antibody is made against

The Human Organism

The Chemical Basis of Life

Cell Structures and Their Functions

Tissuesasis of Life

Integumentary System

Skeletal System: Bones and Joints

Muscular System

Nervous System

Senses

Endocrine System

Blood

Heart

Blood Vessels and Circulation

Respiratory System

Digestive System

Nutrition, Metabolism, and Body Temperature Regulation

Urinary System and Fluid Balance

Reproductive System

Development, Heredity, and Aging

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Exam 14: The Lymphatic System and Immunity

T cells are divided into two primary groups, effector and regulatory. Which of the following are regulatory T cells?

Cytotoxic T cells produce

In the presence of activated complement, neutrophils

Helper T cells can stimulate the proliferation of cytotoxic T cells but not that of B cells.

A hypersensitivity reaction occurs

Arrange the following events in the proper order in which they occur during an allergic response. 1 = Individual experiences symptoms 2 = Individual is sensitized to antigen 3 = IgE attaches to mast cells 4 = Antigen binds to IgE

Helper T cells interact with target cells by recognizing

Most intermediate size antigen antibody complexes are removed by phagocytosis.

Which of the following is the molecule that displays an antigen on the surface of cells?

What is the cell that is responsible for a secondary antibody response to an antigen?

Immune complexes consist of

Skin lesions due to hypersensitivity appear

With advancing age, the lymphatic system

Many different antibodies can be made against a single antigen.

Tonsils

Histamine released by mast cells leads to all of the following symptoms except

People with type O blood can be universal donors because their red blood cells do not contain either A antigen or B antigen on their surface.

For a hypersensitivity response to occur, two bound IgE molecules on a mast cell must react with a specific antigen.

An antigen presenting cell presents antigen to a T helper cell

An individual antibody is made against

The Human Organism

The Chemical Basis of Life

Cell Structures and Their Functions

Tissuesasis of Life

Integumentary System

Skeletal System: Bones and Joints

Muscular System

Nervous System

Senses

Endocrine System

Blood

Heart

Blood Vessels and Circulation

Respiratory System

Digestive System

Nutrition, Metabolism, and Body Temperature Regulation

Urinary System and Fluid Balance

Reproductive System

Development, Heredity, and Aging

Filters