Question 1

Why is it difficult to predict the total number of AIDS cases?

Accepted Answer

Predicting the total number of AIDS (Acq

Question 2

Which of the following is true of lymphokines?

Accepted Answer

A)  They are produced by B cells. 
B)  They inhibit macrophage activity. 
C)  Lymphotoxin is an example of a lymphokine. 
D)  They are produced by helper T cells. 
A)  They are produced by B cells. 
B)  They inhibit macrophage activity. 
C)  Lymphotoxin is an example of a lymphokine. 
D)  They are produced by helper T cells.

Question 3

Complement can best be described as a(n):

Accepted Answer

A)  enzyme in blood. 
B)  lymphokine. 
C)  antibody. 
D)  hormone. 
A)  enzyme in blood. 
B)  lymphokine. 
C)  antibody. 
D)  hormone.

Question 4

The chemical messengers that T cells release into inflamed tissues are called lymphotoxins.

Accepted Answer

A) True 
 B)False

Question 5

Match each term with its corresponding definition.
-Lymphocyte that produces antibodies that attack pathogens or direct other cells to attack them

Accepted Answer

A) Specific immunity 
B) Antibody 
C) B cell 
D) Antigen 
E) T cell 
A) Specific immunity 
B) Antibody 
C) B cell 
D) Antigen 
E) T cell

Question 6

If a blood test indicated that a person had a high level of IgM antibodies in the blood, it could be concluded that:

Accepted Answer

A)  the person's body is responding to a reexposure to an antigen. 
B)  the person's body is responding to the initial exposure to an antigen. 
C)  the person has an increasing likelihood that he will become allergic to an antigen. 
D)  no conclusions could be made. 
A)  the person's body is responding to a reexposure to an antigen. 
B)  the person's body is responding to the initial exposure to an antigen. 
C)  the person has an increasing likelihood that he will become allergic to an antigen. 
D)  no conclusions could be made.

Question 7

Which antibody has 10 antigen-binding sites?

Accepted Answer

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

Question 8

According to the clonal selection theory, antigens select lymphocyte clones by:

Accepted Answer

A)  the chemicals secreted by the lymphocytes. 
B)  the proximity of the lymphocytes to the antigens. 
C)  the shape of receptors on the lymphocyte's plasma membrane. 
D)  producing toxins. 
A)  the chemicals secreted by the lymphocytes. 
B)  the proximity of the lymphocytes to the antigens. 
C)  the shape of receptors on the lymphocyte's plasma membrane. 
D)  producing toxins.

Question 9

Macromolecules that induce the immune system to make certain responses are called:

Accepted Answer

A)  antigens. 
B)  plasma proteins. 
C)  antibodies. 
D)  prostaglandins. 
A)  antigens. 
B)  plasma proteins. 
C)  antibodies. 
D)  prostaglandins.

Question 10

An antibody molecule must have at least two antigen-binding sites.

Accepted Answer

A) True 
 B)False

Question 11

Compare and contrast the development of B cells and T cells.

Accepted Answer

B cells and T cells are both types of ly

Question 12

Which of the following can activate complement?

Accepted Answer

A)  T cells 
B)  Interferon 
C)  Properdin 
D)  Lymphokine 
A)  T cells 
B)  Interferon 
C)  Properdin 
D)  Lymphokine

Question 13

Describe the development and activation of B cells.

Accepted Answer

B cells, also known as B lymphocytes, ar

Question 14

If a person had a nonfunctioning immune system, what types of adaptive immunity (artificial, natural, active, and passive) could be beneficial and which would not be beneficial or even harmful?

Accepted Answer

If a person had a nonfunctioning immune

Question 15

Plasma cells must be in a constant state of protein synthesis to accomplish their function.

Accepted Answer

A) True 
 B)False

Question 16

The somatic recombination hypothesis is one possible explanation for the diversity of antibodies.

Accepted Answer

A) True 
 B)False

Question 17

A person with a nonfunctioning immune system could still benefit from both natural and artificial passive immunity.

Accepted Answer

A) True 
 B)False

Question 18

Why is it difficult to predict the total number of acquired immune deficiency syndrome (AIDS) cases that will result from known HIV-infected patients?

Accepted Answer

A)  After a person is infected, the signs of AIDS infection might not be apparent for years. 
B)  The current treatment of highly active antiretroviral therapy (HAART) alters the infected cells. 
C)  Infected cells begin to change only after azidothymidine (AZT) treatment is started. 
D)  So many people have received the vaccine that there is no way to count who actually has the infection. 
A)  After a person is infected, the signs of AIDS infection might not be apparent for years. 
B)  The current treatment of highly active antiretroviral therapy (HAART) alters the infected cells. 
C)  Infected cells begin to change only after azidothymidine (AZT) treatment is started. 
D)  So many people have received the vaccine that there is no way to count who actually has the infection.

Question 19

Passive immunity provides more rapid protection than does active immunity.

Accepted Answer

A) True 
 B)False

Question 20

Interleukins are cytokinins.

Accepted Answer

A) True 
 B)False

Exam 33: Adaptive Immunity

Why is it difficult to predict the total number of AIDS cases?

Which of the following is true of lymphokines?

Complement can best be described as a(n):

The chemical messengers that T cells release into inflamed tissues are called lymphotoxins.

Match each term with its corresponding definition. -Lymphocyte that produces antibodies that attack pathogens or direct other cells to attack them

If a blood test indicated that a person had a high level of IgM antibodies in the blood, it could be concluded that:

Which antibody has 10 antigen-binding sites?

According to the clonal selection theory, antigens select lymphocyte clones by:

Macromolecules that induce the immune system to make certain responses are called:

An antibody molecule must have at least two antigen-binding sites.

Compare and contrast the development of B cells and T cells.

Which of the following can activate complement?

Describe the development and activation of B cells.

If a person had a nonfunctioning immune system, what types of adaptive immunity (artificial, natural, active, and passive) could be beneficial and which would not be beneficial or even harmful?

Plasma cells must be in a constant state of protein synthesis to accomplish their function.

The somatic recombination hypothesis is one possible explanation for the diversity of antibodies.

A person with a nonfunctioning immune system could still benefit from both natural and artificial passive immunity.

Why is it difficult to predict the total number of acquired immune deficiency syndrome (AIDS) cases that will result from known HIV-infected patients?

Passive immunity provides more rapid protection than does active immunity.

Interleukins are cytokinins.

Organization of the Body

Homeostasis

Chemical Basis of Life

Biomolecules

Cell Structure

Cell Function

Cell Growth and Development

Introduction to Tissues

Tissue Types

Skin

Skeletal Tissues

Axial Skeleton

Appendicular Skeleton

Articulations

Axial Muscles

Appendicular Muscles

Muscle Contraction

Nervous System Cells

Nerve Signaling

Central Nervous System

Peripheral Nervous System

Autonomic Nervous System

General Senses

Special Senses

Endocrine Regulation

Endocrine Glands

Blood

Heart

Blood Vessels

Circulation of the Blood

Lymphatic System

Innate Immunity

Stress

Respiratory Tract

Ventilation

Gas Exchange & Transport

Upper Digestive Tract

Lower Digestive Tract

Digestion and Absorption

Nutrition and Metabolism

Urinary System

Fluid and Electrolyte Balance

Acid Base Balance

Male Reproductive System

Female Reproductive System

Growth and Development

Genetics and Heredity

Filters