Question 1

Helper T cells ________.

Accepted Answer

A)  function in the adaptive immune system activation 
B)  often function to decrease the immune response 
C)  bind tightly to target cells and release a lymphotoxin called perforin 
D)  release B7 proteins 
A)  function in the adaptive immune system activation 
B)  often function to decrease the immune response 
C)  bind tightly to target cells and release a lymphotoxin called perforin 
D)  release B7 proteins

Question 2

Which of the following examples below describes an autoimmune disease?

Accepted Answer

A)  Release of bacterial endotoxins that block acetylcholine release result in muscle paralysis. 
B)  Antibody binding to acetylcholine receptors of the motor end plate resulting in muscle weakness. 
C)  Infection and death of T-helper cells by a virus, resulting in a loss of adaptive immunity. 
D)  Uncontrolled cell division resulting in cell surface abnormalities recognized by NK cells. 
A)  Release of bacterial endotoxins that block acetylcholine release result in muscle paralysis. 
B)  Antibody binding to acetylcholine receptors of the motor end plate resulting in muscle weakness. 
C)  Infection and death of T-helper cells by a virus, resulting in a loss of adaptive immunity. 
D)  Uncontrolled cell division resulting in cell surface abnormalities recognized by NK cells.

Question 3

The nucleotide sequence within the genes that produce B cell receptor and antibodies are reshuffled by a process called somatic recombination.This produces the huge variability in antibody types.

Accepted Answer

A) True 
 B)False

Question 4

Suppressor factors are ________ that suppress the immune system.

Accepted Answer

The answer of Suppressor factors are ________ that suppress the...

Question 5

Figure 21.1
Using Figure 21.1, match the following:
-Heavy chain.

Accepted Answer

A) B 
B) D 
C) A 
D) E 
E) C 
A) B 
B) D 
C) A 
D) E 
E) C

Question 6

A 36-year-old man enters the hospital in an extremely debilitated condition.He has purple-brown skin lesions (a symptom of Kaposi's sarcoma)and a persistent cough.A physical examination reveals swollen lymph nodes,and laboratory tests find a very low lymphocyte count.Information taken during the personal history reveals that he has multiple sex partners with whom he frequently engages in unprotected sex.What is likely to be the man's problem and what is his outlook?

Accepted Answer

He is probably suffering from

Question 7

Cytotoxic T cells and NK cells kill by secretion of proteins.The first called perforin which forms complexes that penetrate the cell membrane and allows the passage of the apoptosis inducing protein granzyme to enter the targeted cell.

Accepted Answer

A) True 
 B)False

Question 8

Failure of developing T cells to recognize self MHC during positive selection results in ________.

Accepted Answer

The answer of Failure of developing T cells to recognize...

Question 9

Regulatory T cells ________.

Accepted Answer

A)  aid B cells in antibody production 
B)  may function in preventing autoimmune reactions 
C)  decrease their activity as antigenic stimulus decreases 
D)  release cytokines that increase the activity of cytotoxic T cells and activated B cells 
A)  aid B cells in antibody production 
B)  may function in preventing autoimmune reactions 
C)  decrease their activity as antigenic stimulus decreases 
D)  release cytokines that increase the activity of cytotoxic T cells and activated B cells

Question 10

Select the correct statement about active and passive immunity.

Accepted Answer

A)  Active and passive humoral immunity are both mechanisms of adaptive immunity that use antibodies. 
B)  Immunological memory is established by passive immunization. 
C)  The antibodies utilized in active immunity are acquired from another organism. 
D)  A vaccination is an example of the introduction of passive immunity into the body. 
A)  Active and passive humoral immunity are both mechanisms of adaptive immunity that use antibodies. 
B)  Immunological memory is established by passive immunization. 
C)  The antibodies utilized in active immunity are acquired from another organism. 
D)  A vaccination is an example of the introduction of passive immunity into the body.

Question 11

The most common type of immediate hypersensitivity is ________.

Accepted Answer

The answer of The most common type of immediate hypersensitivity...

Question 12

Match the following:
-First to peak during a primary immune response.

Accepted Answer

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

Question 13

What are monoclonal antibodies? How are they produced,and what are some of their clinical uses?

Accepted Answer

Monoclonal antibodies are pure antibody

Question 14

Harmful or disease-causing microorganisms are called ________.

Accepted Answer

The answer of Harmful or disease-causing microorganisms are called ________....

Question 15

Why are regulatory T cells important to the immune process?

Accepted Answer

They are vital in the final st

Question 16

Elderly people tend to develop cancer more frequently than younger people.Give an explanation for this observation that relates to immune function.

Accepted Answer

As one ages,the efficiency of

Question 17

A flu vaccine is needed seasonally to be effective but a polio vaccine is only needed once.The best explanation of this is ________.

Accepted Answer

A)  the flu vaccine is substantially weaker than the polio vaccine 
B)  exposure to flu vaccine produces no memory cells from proliferating B-lymphocytes 
C)  the polio virus is substantially weaker than the flu virus 
D)  the flu has several strains that change seasonally 
A)  the flu vaccine is substantially weaker than the polio vaccine 
B)  exposure to flu vaccine produces no memory cells from proliferating B-lymphocytes 
C)  the polio virus is substantially weaker than the flu virus 
D)  the flu has several strains that change seasonally

Question 18

The respiratory burst produced by activated macrophages releases free radicals which are effective at killing pathogens.

Accepted Answer

A) True 
 B)False

Question 19

Match the following:
-Absence results in no immune response.

Accepted Answer

A) Regulatory T cell 
B) Memory cell 
C) Helper T cell 
D) B cell 
E) Cytotoxic T cell 
A) Regulatory T cell 
B) Memory cell 
C) Helper T cell 
D) B cell 
E) Cytotoxic T cell

Question 20

What are the signs of inflammation,and how does inflammation serve as a protective function?

Accepted Answer

The four signs of inflammation are swell

Exam 21: The Immune System: Innate and Adaptive Body Defenses

Helper T cells ________.

Which of the following examples below describes an autoimmune disease?

The nucleotide sequence within the genes that produce B cell receptor and antibodies are reshuffled by a process called somatic recombination.This produces the huge variability in antibody types.

Suppressor factors are ________ that suppress the immune system.

Figure 21.1 Using Figure 21.1, match the following: -Heavy chain.

Cytotoxic T cells and NK cells kill by secretion of proteins.The first called perforin which forms complexes that penetrate the cell membrane and allows the passage of the apoptosis inducing protein granzyme to enter the targeted cell.

Failure of developing T cells to recognize self MHC during positive selection results in ________.

Regulatory T cells ________.

Select the correct statement about active and passive immunity.

The most common type of immediate hypersensitivity is ________.

Match the following: -First to peak during a primary immune response.

What are monoclonal antibodies? How are they produced,and what are some of their clinical uses?

Harmful or disease-causing microorganisms are called ________.

Why are regulatory T cells important to the immune process?

Elderly people tend to develop cancer more frequently than younger people.Give an explanation for this observation that relates to immune function.

A flu vaccine is needed seasonally to be effective but a polio vaccine is only needed once.The best explanation of this is ________.

The respiratory burst produced by activated macrophages releases free radicals which are effective at killing pathogens.

Match the following: -Absence results in no immune response.

What are the signs of inflammation,and how does inflammation serve as a protective function?

The Human Body: an Orientation

Chemistry Comes Alive

Cells: the Living Units

Tissue: the Living Fabric

The Integumentary System

Bones and Skeletal Tissue

The Skeleton

Joints

Muscles and Muscle Tissue

The Muscular System

Fundamentals of the Nervous System and Nervous Tissue

The Central Nervous System

The Peripheral Nervous System and Reflex Activity

The Autonomic Nervous System

The Special Senses

The Endocrine System

Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels

The Lymphatic System and Lymphoid Organs and Tissues

The Respiratory System

The Digestive System

Nutrition,metabolism,and Body Temperature Regulation

The Urinary System

Fluid,electrolyte,and Acid-Base Balance

The Reproductive System

Pregnancy and Human Development

Heredity

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