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)  signs of a weak immune system.F) None of the above
G) B) and D)

Question 2

When the immune response mistakenly targets normal body cells and tissues,a(n) ________ develops.

Accepted Answer

A)  autoimmune disease
B)  immunodeficiency disease
C)  allergic response
D)  cross-reaction
E)  agglutination reactionF) A) and B)
G) A) and C)

Question 3

The various classes of immunoglobulins are differentiated on the basis of their

Accepted Answer

A)  asymmetry.
B)  antigen specificity.
C)  light-chain variable segments.
D)  heavy-chain constant segments.
E)  reactivity.F) B) and D)
G) None of the above

Question 4

List and briefly describe the four general properties of immunity.

Accepted Answer

(1)Specificity: The immune response is t...

Question 5

When an antibody binds to its specific antigen a(n) ________ is formed.

Accepted Answer

A)  phagocytic unit
B)  agglutination system
C)  antibody-antigen complex
D)  hemolytic setting
E)  co-stimulation regionF) A) and B)
G) A) and C)

Question 6

Figure 22-1 The Structure of a Lymph Node
Use Figure 22-1 to answer the following questions:
-Identify the structure labeled "3."

Accepted Answer

A)  deep cortex
B)  capsule
C)  subcapsular space
D)  trabeculae
E)  outer cortexF) A) and B)
G) C) and D)

Question 7

In passive immunity,the

Accepted Answer

A)  immune system attacks normal body cells.
B)  body is deliberately exposed to an antigen.
C)  body receives antibodies produced by other humans.
D)  body receives antibodies produced by an animal.
E)  body receives antibodies produced by other humans or by an animal.F) B) and E)
G) None of the above

Question 8

T is to ________ as B is to ________.

Accepted Answer

A)  top-located; bottom-located
B)  thymus-dependent; bone marrow-derived
C)  thyroid-drawn; bowel-developed
D)  non-thymus-dependent; bottom-located
E)  trabeculae-descended; bursa-originF) A) and B)
G) A) and C)

Question 9

Innate defenses include

Accepted Answer

A)  phagocytic cells.
B)  physical barriers.
C)  inflammation.
D)  interferons.
E)  All of the answers are correct.F) None of the above
G) C) and D)

Question 10

Lymphocytes provide an adaptive or specific defense known as the

Accepted Answer

A)  phagocytic response.
B)  adaptive defense.
C)  immune response.
D)  lymphocytic response.
E)  inflammation of tissues.F) B) and C)
G) D) and E)

Question 11

The release of endogenous pyrogen (or interleukin-1) by active macrophages would

Accepted Answer

A)  cause inflammation.
B)  produce a fever.
C)  activate complement.
D)  opsonize pathogens.
E)  activate antibodies.F) A) and B)
G) A) and C)

Question 12

When an antigen is bound to a Class II MHC protein,it can activate a ________ cell.

Accepted Answer

A)  plasma
B)  helper T
C)  NK
D)  suppressor T
E)  cytotoxic TF) A) and E)
G) None of the above

Question 13

Figure 22-1 The Structure of a Lymph Node
Use Figure 22-1 to answer the following questions:
-Identify the structure labeled "6."

Accepted Answer

A)  medulla
B)  cortex
C)  capsule
D)  trabeculae
E)  cortical sinusF) A) and D)
G) C) and E)

Question 14

In a(n) ________,either the immune system fails to develop normally or the immune response is blocked.

Accepted Answer

A)  autoimmune disease
B)  immunodeficiency disease
C)  allergic response
D)  cross-reaction
E)  agglutination reactionF) D) and E)
G) A) and E)

Question 15

Cytokines that make a cell and its neighbors resistant to virus infection are called

Accepted Answer

A)  complement.
B)  interferons.
C)  interleukins.
D)  immunoglobulins.
E)  transferrins.F) B) and C)
G) A) and B)

Question 16

Antigen-presenting cells located in the epithelia of the skin are called

Accepted Answer

A)  keratinocytes.
B)  squamous macrophages.
C)  germinative cells.
D)  dendritic cells.
E)  Merkel cells.F) A) and E)
G) D) and E)

Question 17

Class II MHC proteins are present in the plasma membrane only

Accepted Answer

A)  when plasma cells are releasing antibodies.
B)  in antigen-presenting cells and lymphocytes.
C)  when cytotoxic T cells are inhibited.
D)  when NK cells are activated.
E)  during infections.F) All of the above
G) C) and D)

Question 18

Antigens that trigger allergic reactions are called

Accepted Answer

A)  interferons.
B)  microbes.
C)  pyrogens.
D)  allergens.
E)  agglutinins.F) A) and E)
G) A) and C)

Question 19

Interleukins do all of the following except

Accepted Answer

A)  increase T-cell sensitivity to antigens exposed on macrophage membranes.
B)  stimulate B-cell activity,plasma cell formation,and antibody production.
C)  stimulate inflammation.
D)  elevate body temperature.
E)  stimulate collagen synthesis.F) None of the above
G) A) and B)

Question 20

Which of the following is not a property of an IgG heavy chain?

Accepted Answer

A)  has one constant segment
B)  has one variable segment
C)  binds one light chain
D)  binds antigen at both ends
E)  binds complement in the constant regionF) A) and D)
G) All of the above

Exam 22: The Lymphatic System and Immunity

Which of the following is not a property of an IgG heavy chain?

Correct AnswerverifiedShow Answer

When an antigen is bound to a Class II MHC protein,it can activate a ________ cell.

Correct AnswerverifiedShow Answer

Lymphocytes provide an adaptive or specific defense known as the

Correct AnswerverifiedShow Answer

Inappropriate or excessive immune responses to antigens are

Correct AnswerverifiedShow Answer

Class II MHC proteins are present in the plasma membrane only

Correct AnswerverifiedShow Answer

Innate defenses include

Correct AnswerverifiedShow Answer

Antigens that trigger allergic reactions are called

Correct AnswerverifiedShow Answer

The various classes of immunoglobulins are differentiated on the basis of their

Correct AnswerverifiedShow Answer

Antigen-presenting cells located in the epithelia of the skin are called

Correct AnswerverifiedShow Answer

When an antibody binds to its specific antigen a(n) ________ is formed.

Correct AnswerverifiedShow Answer

List and briefly describe the four general properties of immunity.

Correct Answerverified(1)Specificity: The immune response is t...View AnswerShow Answer

When the immune response mistakenly targets normal body cells and tissues,a(n) ________ develops.

Correct AnswerverifiedShow Answer

Cytokines that make a cell and its neighbors resistant to virus infection are called

Correct AnswerverifiedShow Answer

Interleukins do all of the following except

Correct AnswerverifiedShow Answer

In passive immunity,the

Correct AnswerverifiedShow Answer

In a(n) ________,either the immune system fails to develop normally or the immune response is blocked.

Correct AnswerverifiedShow Answer

T is to ________ as B is to ________.

Correct AnswerverifiedShow Answer

Figure 22-1 The Structure of a Lymph Node Use Figure 22-1 to answer the following questions: -Identify the structure labeled "3."

Correct AnswerverifiedShow Answer

Figure 22-1 The Structure of a Lymph Node Use Figure 22-1 to answer the following questions: -Identify the structure labeled "6."

Correct AnswerverifiedShow Answer

The release of endogenous pyrogen (or interleukin-1) by active macrophages would

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
(1)Specificity: The immune response is t...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

T is to as B is to .

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified