Question 1

Once a helper T-lymphocyte recognizes an antigen, it begins the immune response by secreting chemical signals called

Accepted Answer

A)   antibodies.
B)   immunoglobulins.
C)   memory B-lymphocytes.
D)   memory T-lymphocytes.
E)   cytokines.F) A) and E)
G) C) and D)

Question 2

A virus is ______ than a bacterial cell, and a virus is composed of ________.

Accepted Answer

A)   larger; nucleic acid within a protein capsid.
B)   larger; a eukaryotic cell with a cell wall.
C)   smaller; nucleic acid within a protein capsid.
D)   smaller; a eukaryotic cell with a cell wall.E) All of the above
F) A) and D)

Question 3

The most prevalent antibody in blood and lymph is

Accepted Answer

A)   IgA.
B)   IgC.
C)   IgD.
D)   IgE.
E)   IgG.F) C) and D)
G) None of the above

Question 4

Cytotoxic T-lymphocytes that have killed a foreign cell may transform into

Accepted Answer

A)   memory B-lymphocytes.
B)   natural killer cells.
C)   plasma cells.
D)   helper T-lymphocytes.
E)   None of the choices is correct.F) B) and D)
G) All of the above

Question 5

The constant region of the five classes of immunoglobulins are the same, and their names depend on their variable regions.

Accepted Answer

A) True 
 B)False

Question 6

Which type of antigen would have the greatest immunogenicity?

Accepted Answer

A)   One that is small, simple, familiar, and abundant
B)   One that is small but complex and rare
C)   One that is large, complex, foreign, and abundant
D)   One that is large but simple and familiarE) A) and B)
F) A) and C)

Question 7

Proteins known as ________ are produced by a variety of cells; they increase capillary permeability, increase CAM production in the endothelium, and stimulate pain receptors.

Accepted Answer

The answer of Proteins known as ________ are produced by...

Question 8

When compared to a primary response, the antibody levels in a secondary response

Accepted Answer

A)   rise more rapidly and with a greater proportion of IgG antibodies.
B)   rise more rapidly and with a smaller proportion of IgG antibodies.
C)   rise more gradually and with a greater proportion of IgG antibodies.
D)   rise more gradually and with a smaller proportion of IgG antibodies.E) A) and C)
F) All of the above

Question 9

Erythrocytes are antigen-presenting cells.

Accepted Answer

A) True 
 B)False

Question 10

MHC class I molecules are

Accepted Answer

A)   glycolipid synthesized on the smooth endoplasmic reticulum.
B)   glycoproteins synthesized on the rough endoplasmic reticulum.
C)   small peptides synthesized on free ribosomes.
D)   phospholipids synthesized in secretory vesicles.E) B) and D)
F) None of the above

Question 11

IgA is primarily found

Accepted Answer

A)   in blood.
B)   in external secretions such as tears, saliva, and mucus.
C)   in lymph.
D)   on the surface of B-lymphocytes.
E)   in the thymus, spleen, and lymph nodes.F) B) and D)
G) C) and E)

Question 12

In terms of their chemical structure, cytokines are ________; their function is to serve as ________.

Accepted Answer

A)   proteins; chemical messengers
B)   proteins; receptors
C)   steroids; chemical messengers.
D)   steroids; receptors.E) A) and D)
F) B) and C)

Question 13

The immunity that occurs as a result of a vaccination is ________ immunity.

Accepted Answer

A)   active
B)   passiveC) A) and B)
D) undefined

Question 14

Lymphocytes don't stay in one lymphatic structure for long, which ensures better chances of meeting their antigen. This process of lymphocytes re-entering the blood and lymph to circulate every few days is called lymphocyte ________.

Accepted Answer

The answer of Lymphocytes don't stay in one lymphatic structure...

Question 15

Activation of lymphocytes occurs in

Accepted Answer

A)   primary lymphatic structures.
B)   secondary lymphatic structures.
C)   tertiary lymphatic structures.
D)   effectors such as muscles and glands.E) A) and C)
F) All of the above

Question 16

Which type of cell is the most effective to attack multicellular parasites such as tapeworms?

Accepted Answer

A)   Basophils
B)   Eosinophils
C)   Macrophages
D)   NeutrophilsE) A) and D)
F) B) and C)

Question 17

Inflammation is a(n)

Accepted Answer

A)   antigen-specific process that occurs in avascular tissue.
B)   antigen-specific process that occurs in vascularized tissue.
C)   nonspecific process that occurs in avascular tissue.
D)   nonspecific process that occurs in vascularized tissue.E) A) and D)
F) B) and C)

Question 18

Which cells resemble basophils and are found in connective tissue, close to small blood vessels?

Accepted Answer

A)   Dendritic cells
B)   Mast cells
C)   NK cells
D)   Alveolar macrophages
E)   CytokinesF) B) and D)
G) A) and B)

Question 19

Antigen presentation involves the display of an antigen

Accepted Answer

A)   inside the cytoplasm of a B-lymphocyte.
B)   on the surface of a cell so that a B-lymphocyte can be exposed to it.
C)   inside the cytoplasm of a T-lymphocyte.
D)   on the surface of a cell so that a T-lymphocyte can be exposed to it.E) A) and B)
F) A) and C)

Question 20

Which type of lymphocyte has coreceptors that assist in the interaction of the lymphocyte with a cell presenting antigen?

Accepted Answer

A)   T-lymphocyte
B)   B-lymphocyteC) A) and B)
D) undefined

Exam 22: Immune System and the Bodys Defense

Activation of lymphocytes occurs in

Correct AnswerverifiedShow Answer

Once a helper T-lymphocyte recognizes an antigen, it begins the immune response by secreting chemical signals called

Correct AnswerverifiedShow Answer

Cytotoxic T-lymphocytes that have killed a foreign cell may transform into

Correct AnswerverifiedShow Answer

Proteins known as ________ are produced by a variety of cells; they increase capillary permeability, increase CAM production in the endothelium, and stimulate pain receptors.

Correct AnswerverifiedShow Answer

The constant region of the five classes of immunoglobulins are the same, and their names depend on their variable regions.

Correct AnswerverifiedShow Answer

Lymphocytes don't stay in one lymphatic structure for long, which ensures better chances of meeting their antigen. This process of lymphocytes re-entering the blood and lymph to circulate every few days is called lymphocyte ________.

Correct AnswerverifiedShow Answer

A virus is ______ than a bacterial cell, and a virus is composed of ________.

Correct AnswerverifiedShow Answer

When compared to a primary response, the antibody levels in a secondary response

Correct AnswerverifiedShow Answer

Which cells resemble basophils and are found in connective tissue, close to small blood vessels?

Correct AnswerverifiedShow Answer

In terms of their chemical structure, cytokines are ________; their function is to serve as ________.

Correct AnswerverifiedShow Answer

The most prevalent antibody in blood and lymph is

Correct AnswerverifiedShow Answer

Erythrocytes are antigen-presenting cells.

Correct AnswerverifiedShow Answer

Antigen presentation involves the display of an antigen

Correct AnswerverifiedShow Answer

Which type of cell is the most effective to attack multicellular parasites such as tapeworms?

Correct AnswerverifiedShow Answer

IgA is primarily found

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MHC class I molecules are

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The immunity that occurs as a result of a vaccination is ________ immunity.

Correct AnswerverifiedShow Answer

Which type of lymphocyte has coreceptors that assist in the interaction of the lymphocyte with a cell presenting antigen?

Correct AnswerverifiedShow Answer

Which type of antigen would have the greatest immunogenicity?

Correct AnswerverifiedShow Answer

Inflammation is a(n)

Correct AnswerverifiedShow Answer

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A virus is than a bacterial cell, and a virus is composed of __.

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In terms of their chemical structure, cytokines are ; their function is to serve as .

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