Question 1

T helper cells possess a glycoprotein called CD4. This molecule binds to

Accepted Answer

A)  MHC class I molecules. 
B)  MHC class II molecules. 
C)  MHC-CD8 antigens. 
D)  MHC-CD28 antigens. 
E)  Interleukin-1 receptor. 
A)  MHC class I molecules. 
B)  MHC class II molecules. 
C)  MHC-CD8 antigens. 
D)  MHC-CD28 antigens. 
E)  Interleukin-1 receptor.

Question 2

The lymphatic system is involved in

Accepted Answer

A)  lipid absorption from the digestive tract. 
B)  transporting lymph from the intestines to the liver. 
C)  maintenance of pH in the tissues. 
D)  production of erythrocytes. 
E)  protein metabolism. 
A)  lipid absorption from the digestive tract. 
B)  transporting lymph from the intestines to the liver. 
C)  maintenance of pH in the tissues. 
D)  production of erythrocytes. 
E)  protein metabolism.

Question 3

Tolerance to antigens is induced by

Accepted Answer

A)  blocking costimulation. 
B)  stimulating interleukin 2 production. 
C)  preventing suppressor T cell proliferation. 
D)  promoting the release of cytokines. 
E)  stimulating helper T cell division. 
A)  blocking costimulation. 
B)  stimulating interleukin 2 production. 
C)  preventing suppressor T cell proliferation. 
D)  promoting the release of cytokines. 
E)  stimulating helper T cell division.

Question 4

The MHC class I antigen complex displays a foreign antigen on the cell surface. This prompts the immune system to destroy

Accepted Answer

A)  B cell clones. 
B)  extracellular antigens. 
C)  the displaying cell. 
D)  mature red blood cells. 
E)  the virus inside the cell, but not the cell. 
A)  B cell clones. 
B)  extracellular antigens. 
C)  the displaying cell. 
D)  mature red blood cells. 
E)  the virus inside the cell, but not the cell.

Question 5

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 6

Primary lymphatic organs include the

Accepted Answer

A)  tonsils and spleen. 
B)  thymus and lymph nodes. 
C)  red bone marrow and thymus. 
D)  red bone marrow and lymph nodes. 
A)  tonsils and spleen. 
B)  thymus and lymph nodes. 
C)  red bone marrow and thymus. 
D)  red bone marrow and lymph nodes.

Question 7

Lysozyme is

Accepted Answer

A)  an enzyme found in body fluids that destroys certain bacteria. 
B)  a type of antibody that attracts a phagocyte. 
C)  a cytokine produced by T cells. 
D)  an antigen. 
E)  a bacteria. 
A)  an enzyme found in body fluids that destroys certain bacteria. 
B)  a type of antibody that attracts a phagocyte. 
C)  a cytokine produced by T cells. 
D)  an antigen. 
E)  a bacteria.

Question 8

Match the term or description to the type of hypersensitivity.
-immune complex disease

Accepted Answer

A) immediate hypersensitivity 
B) delayed hypersensitivity 
A) immediate hypersensitivity 
B) delayed hypersensitivity

Question 9

Which of the following is false?

Accepted Answer

A)  The HIV virus binds to the CD4 molecule of host cells. 
B)  There is currently only one cure for AIDS - AZT. 
C)  Most manifestations of AIDS are explained by the loss of helper T cell functions. 
D)  Once infected by the virus, a person will test positive for HIV antibodies. 
E)  In order for HIV to replicate, viral RNA is used to make viral DNA, which is inserted into the host cell's DNA. 
A)  The HIV virus binds to the CD4 molecule of host cells. 
B)  There is currently only one cure for AIDS - AZT. 
C)  Most manifestations of AIDS are explained by the loss of helper T cell functions. 
D)  Once infected by the virus, a person will test positive for HIV antibodies. 
E)  In order for HIV to replicate, viral RNA is used to make viral DNA, which is inserted into the host cell's DNA.

Question 10

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

Accepted Answer

A) immediate hypersensitivity 
B) delayed hypersensitivity 
A) immediate hypersensitivity 
B) delayed hypersensitivity

Question 11

Match the appropriate characteristic with the type of immunity.
-histamine produced

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 immunity 
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 immunity

Question 12

The most rapidly increasing group of AIDS patients is ____ who have had sexual contact with an infected person.

Accepted Answer

A)  homosexual males 
B)  hemophiliacs 
C)  heterosexual males and females 
D)  homosexual females 
E)  bisexual males 
A)  homosexual males 
B)  hemophiliacs 
C)  heterosexual males and females 
D)  homosexual females 
E)  bisexual males

Question 13

Match the type of cell with its function.
-neutrophil

Accepted Answer

A) first cell to enter infected tissue 
B) will become macrophage in tissue 
C) lyses tumor and virus-infected cells 
D) cell that increases in number during a parasitic infection 
E) nonmotile cells in connective tissue that promote inflammation 
A) first cell to enter infected tissue 
B) will become macrophage in tissue 
C) lyses tumor and virus-infected cells 
D) cell that increases in number during a parasitic infection 
E) nonmotile cells in connective tissue that promote inflammation

Question 14

Match the appropriate characteristic with the type of immunity.
-cells that provide this immunity are lymphocytes.

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 immunity 
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 immunity

Question 15

Match the cell of adaptive immunity with its function.
-memory T 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 cells 
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 cells

Question 16

Lymph nodes are surrounded by a dense connective tissue called

Accepted Answer

A)  cortex. 
B)  capsule. 
C)  reticulum. 
D)  trabeculum. 
E)  basement membrane. 
A)  cortex. 
B)  capsule. 
C)  reticulum. 
D)  trabeculum. 
E)  basement membrane.

Question 17

Lacteals are

Accepted Answer

A)  a type of lymphocyte. 
B)  a nonspecific defense. 
C)  lymphatic vessels in the lining of the small intestine. 
D)  the sinuses inside a lymph node. 
E)  germinal centers. 
A)  a type of lymphocyte. 
B)  a nonspecific defense. 
C)  lymphatic vessels in the lining of the small intestine. 
D)  the sinuses inside a lymph node. 
E)  germinal centers.

Question 18

Adenoids are enlarged

Accepted Answer

A)  lingual tonsils. 
B)  pharyngeal tonsils. 
C)  palatine tonsils. 
D)  cervical lymph nodes. 
E)  axillary lymph nodes. 
A)  lingual tonsils. 
B)  pharyngeal tonsils. 
C)  palatine tonsils. 
D)  cervical lymph nodes. 
E)  axillary lymph nodes.

Question 19

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. 
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.

Question 20

Interferons, interleukins, and lymphokines are examples of:

Accepted Answer

A)  chemical barriers. 
B)  immune cells. 
C)  immunoglobulins. 
D)  mast cells. 
E)  cytokines. 
A)  chemical barriers. 
B)  immune cells. 
C)  immunoglobulins. 
D)  mast cells. 
E)  cytokines.

Exam 22: Lymphatic System and Immunity

T helper cells possess a glycoprotein called CD4. This molecule binds to

The lymphatic system is involved in

Tolerance to antigens is induced by

The MHC class I antigen complex displays a foreign antigen on the cell surface. This prompts the immune system to destroy

Tonsils

Primary lymphatic organs include the

Lysozyme is

Match the term or description to the type of hypersensitivity. -immune complex disease

Which of the following is false?

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

Match the appropriate characteristic with the type of immunity. -histamine produced

The most rapidly increasing group of AIDS patients is ____ who have had sexual contact with an infected person.

Match the type of cell with its function. -neutrophil

Match the appropriate characteristic with the type of immunity. -cells that provide this immunity are lymphocytes.

Match the cell of adaptive immunity with its function. -memory T cell

Lymph nodes are surrounded by a dense connective tissue called

Lacteals are

Adenoids are enlarged

The inflammatory response

Interferons, interleukins, and lymphokines are examples of:

The Human Organism

The Chemical Basis of Life

Cell Biology

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joints and Movement

Muscular System: Histology and Physiology

Muscular System: Gross Anatomy

Functional Organization of Nervous Tissue

Spinal Cord and Spinal Nerves

Brain and Cranial Nerves

Integration of Nervous System Functions

The Special Senses

Autonomic Nervous System

Functional Organization of the Endocrine System

Endocrine Glands

Cardiovascular System: Blood

Cardiovascular System: the Heart

Cardiovascular System: Blood Vessels and Circulation

Respiratory System

Digestive System

Nutrition, Metabolism, and Temperature Regulation

Urinary System

Water, Electrolyte, and Acid-Based Balance

Reproductive System

Development, Growth, Aging, and Genetics

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