Question 1

Inappropriate or excessive immune responses to antigens are

Accepted Answer

A)  immunodeficiency diseases. 
B)  autoimmune diseases. 
C)  allergies. 
D)  the result of stress. 
E)  common in the elderly. 
A)  immunodeficiency diseases. 
B)  autoimmune diseases. 
C)  allergies. 
D)  the result of stress. 
E)  common in the elderly. C

Question 2

Cytokines function by

Accepted Answer

A)  acting as messengers for growth and activity of other cells. 
B)  poisoning and killing invading cells. 
C)  digesting invading cells. 
D)  acting as messengers for growth and activity of other cells and poisoning and killing invading cells. 
E)  acting as messengers for growth and activity of other cells, poisoning and killing invading cells, and digesting invading cells. 
A)  acting as messengers for growth and activity of other cells. 
B)  poisoning and killing invading cells. 
C)  digesting invading cells. 
D)  acting as messengers for growth and activity of other cells and poisoning and killing invading cells. 
E)  acting as messengers for growth and activity of other cells, poisoning and killing invading cells, and digesting invading cells. A

Question 3

Compare and contrast innate and acquired immunity.

Accepted Answer

Innate immunity is a nonspecific response to foreign invaders or tissue damage and acts as a second line of defense.Acquired (adaptive) immunity has two major methods of response, cell-mediated immunity and humoral immunity, both of which are specific to the pathogen.Cells of the adaptive immune system are responsible for immunological memory.

Question 4

Bill wants to determine his blood type, so he takes a few drops of blood from a puncture wound in his finger and mixes it with various antisera.His blood cells agglutinate when mixed with the anti-A serum but not with the anti-B.Therefore, which of the following is True?

Accepted Answer

A)  Bill could receive type B blood in a transfusion. 
B)  Bill could donate blood to an individual with type B blood. 
C)  Bill is Rh positive. 
D)  Bill's plasma contains B antibodies. 
E)  Bill's plasma would cross-react with type O red blood cells. 
A)  Bill could receive type B blood in a transfusion. 
B)  Bill could donate blood to an individual with type B blood. 
C)  Bill is Rh positive. 
D)  Bill's plasma contains B antibodies. 
E)  Bill's plasma would cross-react with type O red blood cells.

Question 5

________ are groups of lymphocytes with a specific ligand in common.

Accepted Answer

The answer of ________ are groups of lymphocytes with a...

Question 6

Stem cells that will form T lymphocytes are modified in the

Accepted Answer

A)  bone marrow. 
B)  liver. 
C)  spleen. 
D)  thymus. 
E)  kidneys. 
A)  bone marrow. 
B)  liver. 
C)  spleen. 
D)  thymus. 
E)  kidneys.

Question 7

Match the cell type with its description.
-Precursors of macrophages, these cells are relatively rare in blood because they are actually in transit to some other site.

Accepted Answer

A) lymphocytes 
B) neutrophils 
C) monocytes 
D) eosinophils 
E) basophils 
A) lymphocytes 
B) neutrophils 
C) monocytes 
D) eosinophils 
E) basophils

Question 8

The rejection of a transplanted organ by the immune system of the recipient is a result of a cell-mediated immune response, rather than antibody-mediated response.What does this indicate about the nature of the transplanted cells? From the perspective of the T cell, are the cells of the transplanted organ significantly different from virus-infected or cancerous self cells?

Accepted Answer

Transplanted cells contain surface molec

Question 9

Acute phase proteins are produced by the

Accepted Answer

A)  macrophages. 
B)  lymph nodes. 
C)  liver. 
D)  thymus. 
E)  lymphocytes. 
A)  macrophages. 
B)  lymph nodes. 
C)  liver. 
D)  thymus. 
E)  lymphocytes.

Question 10

Chemotaxins function in

Accepted Answer

A)  digesting invading cells. 
B)  attracting additional immune cells. 
C)  poisoning and killing invading cells. 
D)  digesting invading cells and attracting additional immune cells. 
E)  digesting invading cells, attracting additional immune cells, and poisoning and killing invading cells. 
A)  digesting invading cells. 
B)  attracting additional immune cells. 
C)  poisoning and killing invading cells. 
D)  digesting invading cells and attracting additional immune cells. 
E)  digesting invading cells, attracting additional immune cells, and poisoning and killing invading cells.

Question 11

Cells that help to regulate the immune response are

Accepted Answer

A)  B lymphocytes. 
B)  plasma cells. 
C)  helper T cells. 
D)  cytotoxic T cells. 
E)  NK cells. 
A)  B lymphocytes. 
B)  plasma cells. 
C)  helper T cells. 
D)  cytotoxic T cells. 
E)  NK cells.

Question 12

Leslie has a bad sore throat and the lymph nodes in her neck are swollen.This indicates

Accepted Answer

A)  the focus of the infection is the lymph nodes. 
B)  lymph is not flowing through these lymph nodes. 
C)  the affected lymph nodes contain an increased number of lymphocytes. 
D)  the lymph gland has increased its secretion of thymosin. 
A)  the focus of the infection is the lymph nodes. 
B)  lymph is not flowing through these lymph nodes. 
C)  the affected lymph nodes contain an increased number of lymphocytes. 
D)  the lymph gland has increased its secretion of thymosin.

Question 13

Which is NOT a pathogen?

Accepted Answer

A)  cancer 
B)  hookworm 
C)  athlete's foot fungus 
D)  chicken pox virus 
E)  meningococcus bacterium 
A)  cancer 
B)  hookworm 
C)  athlete's foot fungus 
D)  chicken pox virus 
E)  meningococcus bacterium

Question 14

Sketch the graphs of plasma antibody concentration in a primary immune response and a secondary immune response.Explain the significance of the graphs.

Accepted Answer

In a primary response, antibody is not d

Question 15

A substance that induces fever is known as a(n)

Accepted Answer

A)  opsonin. 
B)  chemotaxin. 
C)  acute phase protein. 
D)  pyrogen. 
E)  cytokine. 
A)  opsonin. 
B)  chemotaxin. 
C)  acute phase protein. 
D)  pyrogen. 
E)  cytokine.

Question 16

A patient has elevated eosinophils and monocytes but normal levels of neutrophils, basophils, and lymphocytes.Which of the following could be causing those levels?

Accepted Answer

A)  an acute bacterial infection 
B)  a chronic bacterial infection 
C)  a viral infection 
D)  a chronic parasitic infection 
E)  a severe allergic reaction 
A)  an acute bacterial infection 
B)  a chronic bacterial infection 
C)  a viral infection 
D)  a chronic parasitic infection 
E)  a severe allergic reaction

Question 17

In an experimental situation focused on the development of a new vaccine, mice were injected with a viral antigen.Their plasma was removed in order to detect the presence of antibodies.This is an example of

Accepted Answer

A)  innate immunity. 
B)  active immunization. 
C)  passive immunization. 
D)  natural immunity. 
E)  autoimmunity. 
A)  innate immunity. 
B)  active immunization. 
C)  passive immunization. 
D)  natural immunity. 
E)  autoimmunity.

Question 18

________ is the immunoglobulin class that comprises 75% of antibodies in adult blood.

Accepted Answer

A)  IgA 
B)  IgD 
C)  IgE 
D)  IgG 
E)  IgM 
A)  IgA 
B)  IgD 
C)  IgE 
D)  IgG 
E)  IgM

Question 19

Lymphocytes that attack foreign cells or body cells infected with viruses are

Accepted Answer

A)  B lymphocytes. 
B)  plasma cells. 
C)  helper T cells. 
D)  cytotoxic T cells. 
E)  suppressor T cells. 
A)  B lymphocytes. 
B)  plasma cells. 
C)  helper T cells. 
D)  cytotoxic T cells. 
E)  suppressor T cells.

Question 20

Which of the following immune cells are also known as Langerhans cells?

Accepted Answer

A)  basophils 
B)  eosinophils 
C)  mast cells 
D)  lymphocytes 
E)  dendritic cells 
A)  basophils 
B)  eosinophils 
C)  mast cells 
D)  lymphocytes 
E)  dendritic cells

Exam 24: The Immune System

Inappropriate or excessive immune responses to antigens are

Cytokines function by

Compare and contrast innate and acquired immunity.

Bill wants to determine his blood type, so he takes a few drops of blood from a puncture wound in his finger and mixes it with various antisera.His blood cells agglutinate when mixed with the anti-A serum but not with the anti-B.Therefore, which of the following is True?

________ are groups of lymphocytes with a specific ligand in common.

Stem cells that will form T lymphocytes are modified in the

Match the cell type with its description. -Precursors of macrophages, these cells are relatively rare in blood because they are actually in transit to some other site.

Acute phase proteins are produced by the

Chemotaxins function in

Cells that help to regulate the immune response are

Leslie has a bad sore throat and the lymph nodes in her neck are swollen.This indicates

Which is NOT a pathogen?

Sketch the graphs of plasma antibody concentration in a primary immune response and a secondary immune response.Explain the significance of the graphs.

A substance that induces fever is known as a(n)

A patient has elevated eosinophils and monocytes but normal levels of neutrophils, basophils, and lymphocytes.Which of the following could be causing those levels?

In an experimental situation focused on the development of a new vaccine, mice were injected with a viral antigen.Their plasma was removed in order to detect the presence of antibodies.This is an example of

________ is the immunoglobulin class that comprises 75% of antibodies in adult blood.

Lymphocytes that attack foreign cells or body cells infected with viruses are

Which of the following immune cells are also known as Langerhans cells?

Introduction to Physiology

Molecular Interactions

Compartmentation: Cells and Tissues

Energy and Cellular Metabolism

Membrane Dynamics

Communication, Integration, and Homeostasis

Introduction to the Endocrine System

Neurons: Cellular and Network Properties

The Central Nervous System

Sensory Physiology

Efferent Division: Autonomic and Somatic Motor Control

Muscles

Integrative Physiology I: Control of Body Movement

Cardiovascular Physiology

Blood Flow and the Control of Blood Pressure

Blood

Mechanics of Breathing

Gas Exchange and Transport

The Kidneys

Integrative Physiology II: Fluid and Electrolyte Balance

The Digestive System

Metabolism and Energy Balance

Endocrine Control of Growth and Metabolism

Integrative Physiology III: Exercise

Reproduction and Development

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