Question 1

Interleukins are chemical signals by which immune cells communicate with each other.

Accepted Answer

A) True 
 B)False

Question 2

A(n)  is the region of the molecule that is recognized by antibodies.

Accepted Answer

A)  epitope
B)  antigen
C)  hapten
D)  major histocompatibility complex (MH
C)  
E)  antibody monomerF) A) and B)
G) A) and C)

Question 3

employ a "respiratory burst" to produce bactericidal chemicals such as hydrogen peroxide (H₂O₂)  and hypochlorite (HClO) .

Accepted Answer

A)  Neutrophils
B)  Basophils
C)  Cytotoxic T cells
D)  Natural killer cells
E)  Suppressor T cellsF) All of the above
G) C) and D)

Question 4

are found especially in the mucous membrane, standing guard against parasites and allergens.

Accepted Answer

A)  Monocytes
B)  Lymphocytes
C)  Basophils
D)  Neutrophils
E)  EosinophilsF) B) and D)
G) D) and E)

Question 5

Special lymphatic vessels called lacteals absorb dietary that are not absorbed by the blood capillaries.

Accepted Answer

A)  water
B)  glucose
C)  vitamins
D)  amino acids
E)  lipidsF) B) and D)
G) C) and D)

Question 6

Most common allergies are the result of

Accepted Answer

A)  autoimmune diseases.
B)  type IV (delayed)  hypersensitivity.
C)  type III (immune complex)  hypersensitivity.
D)  type II (antibody-dependent cytotoxic)  hypersensitivity.
E)  type I (acute)  hypersensitivity.F) C) and D)
G) B) and E)

Question 7

This figure shows

Accepted Answer

A)  the action of interferon.
B)  the action of the complement system.
C)  the action of a natural killer cell.
D)  immune clearance.
E)  opsonization.F) A) and B)
G) C) and D)

Question 8

are the largest of the lymphatic vessels and they empty into the .

Accepted Answer

A)  Lymphatic trunks; collecting ducts
B)  Lymphatic trunks; subclavian arteries
C)  Lymphatic trunks; subclavian veins
D)  Collecting ducts; subclavian veins
E)  Collecting ducts; subclavian arteriesF) A) and D)
G) B) and D)

Question 9

This is the only lymphatic organ with afferent lymphatic vessels.

Accepted Answer

A)  lymph node
B)  thymus
C)  spleen
D)  red bone marrow
E)  tonsilsF) B) and D)
G) A) and D)

Question 10

Autoimmune diseases are disorders in which the immune system fails to distinguish from foreign ones.

Accepted Answer

A)  self-immunoglobulins
B)  self-antibodies
C)  self-antigens
D)  self-interleukins
E)  self-complement proteinsF) A) and B)
G) A) and C)

Question 11

Lymphatic vessels recover about of the fluid filtered by capillaries.

Accepted Answer

A)  5%
B)  15%
C)  25%
D)  50%
E)  85%F) B) and E)
G) A) and B)

Question 12

All these cellular agents participate in inflammation except

Accepted Answer

A)  cytotoxic T cells.
B)  helper T cells.
C)  eosinophils.
D)  neutrophils.
E)  endothelial cells.F) A) and C)
G) All of the above

Question 13

Beta cell destruction that causes type 1 diabetes mellitus is a(n)

Accepted Answer

A)  anaphylactic hypersensitivity.
B)  type IV (delayed)  hypersensitivity.
C)  type III (immune complex)  hypersensitivity.
D)  type II (antibody-dependent cytotoxic)  hypersensitivity.
E)  type I (acute)  hypersensitivity.F) A) and B)
G) B) and E)

Question 14

Pus is made of dead neutrophils, macrophages, and other tissue debris from a damaged tissue.

Accepted Answer

A) True 
 B)False

Question 15

Removal of the will be the most harmful of all for a one-year-old child.

Accepted Answer

A)  spleen
B)  lymph node
C)  thymus
D)  appendix
E)  palatine tonsilF) C) and E)
G) A) and B)

Question 16

Each immunoglobulin (Ig)  has antigen-bonding site(s) .

Accepted Answer

A)  two
B)  four
C)  six
D)  one
E)  threeF) C) and E)
G) B) and E)

Question 17

One characteristic of the immune response is specificity.This means that

Accepted Answer

A)  immunity starts in defined organs in the body.
B)  immunity starts in specialized tissues in the body.
C)  immunity is carried on by a specific group of cells of the immune system.
D)  immunity is directed against a particular pathogen.
E)  immunity is carried on by a specific group of tissues of the immune system.F) B) and D)
G) A) and C)

Question 18

Vaccination stimulates

Accepted Answer

A)  natural active immunity.
B)  artificial active immunity.
C)  natural passive immunity.
D)  artificial passive immunity.
E)  artificial specific immunity.F) B) and E)
G) A) and B)

Question 19

T cells undergo positive selection in the thymus, which means

Accepted Answer

A)  they react against self antigens.
B)  they develop surface antigen receptors.
C)  they remain alive but unresponsive.
D)  self-reactive T cells die and macrophages phagocytize them.
E)  they multiply and form clones of identical T cells.F) A) and B)
G) All of the above

Question 20

The antigenicity of a molecule is due to specific regions of it called haptens.

Accepted Answer

A) True 
 B)False

Exam 21: The Lymphatic and Immune Systems

are found especially in the mucous membrane, standing guard against parasites and allergens.

Correct AnswerverifiedShow Answer

Pus is made of dead neutrophils, macrophages, and other tissue debris from a damaged tissue.

Correct AnswerverifiedShow Answer

Interleukins are chemical signals by which immune cells communicate with each other.

Correct AnswerverifiedShow Answer

employ a "respiratory burst" to produce bactericidal chemicals such as hydrogen peroxide (H₂O₂) and hypochlorite (HClO) .

Correct AnswerverifiedShow Answer

Lymphatic vessels recover about of the fluid filtered by capillaries.

Correct AnswerverifiedShow Answer

All these cellular agents participate in inflammation except

Correct AnswerverifiedShow Answer

Each immunoglobulin (Ig) has antigen-bonding site(s) .

Correct AnswerverifiedShow Answer

Special lymphatic vessels called lacteals absorb dietary that are not absorbed by the blood capillaries.

Correct AnswerverifiedShow Answer

Most common allergies are the result of

Correct AnswerverifiedShow Answer

Vaccination stimulates

Correct AnswerverifiedShow Answer

Removal of the will be the most harmful of all for a one-year-old child.

Correct AnswerverifiedShow Answer

Autoimmune diseases are disorders in which the immune system fails to distinguish from foreign ones.

Correct AnswerverifiedShow Answer

T cells undergo positive selection in the thymus, which means

Correct AnswerverifiedShow Answer

One characteristic of the immune response is specificity.This means that

Correct AnswerverifiedShow Answer

This is the only lymphatic organ with afferent lymphatic vessels.

Correct AnswerverifiedShow Answer

are the largest of the lymphatic vessels and they empty into the .

Correct AnswerverifiedShow Answer

Beta cell destruction that causes type 1 diabetes mellitus is a(n)

Correct AnswerverifiedShow Answer

This figure shows

Correct AnswerverifiedShow Answer

A(n) is the region of the molecule that is recognized by antibodies.

Correct AnswerverifiedShow Answer

The antigenicity of a molecule is due to specific regions of it called haptens.

Correct AnswerverifiedShow Answer

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