Question 1

The human immunodeficiency virus mounts a direct attack on TH cells by recognizing the ________ surface proteins associated with these cells.

Accepted Answer

A)  Fc
B)  CD4
C)  epitope
D)  cytokineE) None of the above
F) C) and D)

Question 2

During a blood transfusion,what can occur when the antigens on the blood cells of a blood donor interact with the antibodies that are present in the plasma of a recipient that has a different blood type?

Accepted Answer

A)  an autoimmune reaction
B)  an infection
C)  an agglutination reaction
D)  an inflammatory reaction
E)  a temperature responseF) None of the above
G) A) and B)

Question 3

Select the correct statement regarding the temperature response of the immune system.

Accepted Answer

A)  When macrophages encounter invading cells,they release immunoglobulin-1,which is carried to the brain by the circulatory system.
B)  Interleukin-1 is a pyrogen,which can cause the neurons in the hypothalamus to raise the body's temperature,producing a fever.
C)  Fever contributes to the body's defenses by stimulating hyperhidrosis and causing the liver and spleen to store magnesium.
D)  Fevers above 99° F are often fatal.E) C) and D)
F) B) and C)

Question 4

What category of cells includes both phagocytes and lymphocytes?

Accepted Answer

A)  leukocytes
B)  erythrocytes
C)  platelets
D)  target cellsE) None of the above
F) B) and C)

Question 5

Which of the following cells is matched to an incorrect function?

Accepted Answer

A)  eosinophil-important to the elimination of parasites
B)  mast cell-releases histamine
C)  macrophage-phagocytic cell
D)  neutrophil-important antigen presenting cell
E)  monocyte-precursor of macrophageF) C) and D)
G) A) and B)

Question 6

Which of the following regarding antigens is true?

Accepted Answer

A)  A large antigen is likely to have many different epitopes,each of which can stimulate a distinct immune response.
B)  An antigen is a molecule which promotes a general immune response.
C)  Bacteria do not contain antigens.
D)  Antigens can only be recognized by their lipid moieties.
E)  The most effective antigens are small simple amino acid complexes.F) All of the above
G) A) and E)

Question 7

What are on the surface of most vertebrate cells,acting as markers of "self"?

Accepted Answer

A)  major histocompatibility complex proteins
B)  T-cell receptors
C)  antigens
D)  immunoglobulinsE) A) and C)
F) B) and C)

Question 8

What is a necessary component of a powerful immune system?

Accepted Answer

A)  immunological tolerance
B)  strict temperature homeostasis
C)  thousands of different Ig genes
D)  a large thymus glandE) B) and C)
F) A) and B)

Question 9

What do we call a lymphocyte that has never encountered an antigen?

Accepted Answer

A)  T cell
B)  B cell
C)  foreign lymphocyte
D)  stem leukocyte
E)  naïve lymphocyteF) D) and E)
G) None of the above

Question 10

What cells are phagocytes that can also present antigens to TH cells?

Accepted Answer

A)  B cells
B)  macrophages
C)  plasma cells
D)  T cells
E)  monocytesF) D) and E)
G) B) and E)

Question 11

What initiates the immune response?

Accepted Answer

A)  suppressor T cells
B)  cytotoxic T cells
C)  mediator T cells
D)  inducer T cells
E)  helper T cellsF) A) and E)
G) D) and E)

Question 12

When a person is tested for HIV,the test is considered positive if ________ to the HIV are present.

Accepted Answer

A)  bacteria
B)  antigens
C)  antibodies
D)  T-cells
E)  natural killer cellsF) B) and D)
G) B) and E)

Question 13

Which of the following statements regarding hypersensitivity are true? (Check all that apply.)

Accepted Answer

A)  The acceptance of self cells is known as immunological tolerance.
B)  Allergies are caused by IgG secretion in response to antigens.
C)  Autoreactive B cells produce autoantibodies causing inflammation.
D)  Itchy welts or hives could be called a local anaphylaxis.
E)  Delayed hypersensitivity is mediated by TH cells and macrophages.F) B) and D)
G) C) and E)

Question 14

In the humoral response,some B cells differentiate into plasma cells.What do plasma cells produce in large quantities?

Accepted Answer

A)  agglutinations that are specific for foreign antibodies
B)  interferons specific for foreign antigens
C)  immunoglobulins specific for foreign antigens
D)  antigens specific for foreign antibodies
E)  macrophages specific for foreign antibodiesF) None of the above
G) A) and D)

Question 15

With what do cytotoxic cells interact?

Accepted Answer

A)  MHC-I proteins
B)  MHC-II proteins
C)  foreign antigen
D)  MHC-I and MHC-II proteins
E)  MHC-I proteins and foreign antigensF) C) and E)
G) A) and B)

Question 16

When a "new" antigen first challenges the immune system,if the primary immune response produces B cells,what are the fates of those B cells?
 I-Some of the B cells become plasma cells that secrete antibodies.
II-Some of the B cells become memory cells and can produce a swifter response if the body encounters that particular antigen again.
III-Some of the B cells secrete chemicals called pyrogens that travel to the brain inducing a fever.

Accepted Answer

A)  just II
B)  just I
C)  II and III
D)  I and II
E)  I,II,and IIIF) C) and E)
G) A) and C)

Question 17

Which of the following are organs of the immune system? (Check all that apply.)

Accepted Answer

A)  red bone marrow
B)  spleen
C)  thymus
D)  thyroid
E)  tonsilsF) C) and E)
G) None of the above

Question 18

What is the term for immunity gained by the transfer of antibodies across the placental barrier?

Accepted Answer

A)  passive immunity
B)  acquired immunity
C)  humoral immunity
D)  cell-mediated immunity
E)  auto immunityF) A) and E)
G) D) and E)

Question 19

Which of the following describes passive immunity?

Accepted Answer

A)  antibodies transferred to the fetus from the mother across the placenta
B)  vaccination for polio
C)  allowing oneself to become infected with chicken pox
D)  vaccination for influenza
E)  catching a common coldF) B) and E)
G) C) and D)

Question 20

What is another term for allergy?

Accepted Answer

A)  autoimmunity
B)  antibodies
C)  hypersensitivity
D)  antigen shifting
E)  asthmaF) B) and E)
G) A) and D)

Exam 50: The Immune System

Correct Answer
verified

With what do cytotoxic cells interact?

Correct Answer
verified

Which of the following cells is matched to an incorrect function?

Correct Answer
verified

During a blood transfusion,what can occur when the antigens on the blood cells of a blood donor interact with the antibodies that are present in the plasma of a recipient that has a different blood type?

Correct Answer
verified

What is another term for allergy?

Correct Answer
verified

What initiates the immune response?

Correct Answer
verified

Which of the following are organs of the immune system? (Check all that apply.)

Correct Answer
verified

What is the term for immunity gained by the transfer of antibodies across the placental barrier?

Correct Answer
verified

Select the correct statement regarding the temperature response of the immune system.

Correct Answer
verified

What cells are phagocytes that can also present antigens to T_H cells?

Correct Answer
verified

What category of cells includes both phagocytes and lymphocytes?

Correct Answer
verified

Which of the following regarding antigens is true?

Correct Answer
verified

When a person is tested for HIV,the test is considered positive if ________ to the HIV are present.

Correct Answer
verified

What do we call a lymphocyte that has never encountered an antigen?

Correct Answer
verified

In the humoral response,some B cells differentiate into plasma cells.What do plasma cells produce in large quantities?

Correct Answer
verified

The human immunodeficiency virus mounts a direct attack on T_H cells by recognizing the ________ surface proteins associated with these cells.

Correct Answer
verified

What is a necessary component of a powerful immune system?

Correct Answer
verified

Which of the following describes passive immunity?

Correct Answer
verified

What are on the surface of most vertebrate cells,acting as markers of "self"?

Correct Answer
verified

Which of the following statements regarding hypersensitivity are true? (Check all that apply.)

Correct Answer
verified

Exam 50: The Immune System

Correct AnswerverifiedShow Answer

With what do cytotoxic cells interact?

Correct AnswerverifiedShow Answer

Which of the following cells is matched to an incorrect function?

Correct AnswerverifiedShow Answer

During a blood transfusion,what can occur when the antigens on the blood cells of a blood donor interact with the antibodies that are present in the plasma of a recipient that has a different blood type?

Correct AnswerverifiedShow Answer

What is another term for allergy?

Correct AnswerverifiedShow Answer

What initiates the immune response?

Correct AnswerverifiedShow Answer

Which of the following are organs of the immune system? (Check all that apply.)

Correct AnswerverifiedShow Answer

What is the term for immunity gained by the transfer of antibodies across the placental barrier?

Correct AnswerverifiedShow Answer

Select the correct statement regarding the temperature response of the immune system.

Correct AnswerverifiedShow Answer

What cells are phagocytes that can also present antigens to TH cells?

Correct AnswerverifiedShow Answer

What category of cells includes both phagocytes and lymphocytes?

Correct AnswerverifiedShow Answer

Which of the following regarding antigens is true?

Correct AnswerverifiedShow Answer

When a person is tested for HIV,the test is considered positive if ________ to the HIV are present.

Correct AnswerverifiedShow Answer

What do we call a lymphocyte that has never encountered an antigen?

Correct AnswerverifiedShow Answer

In the humoral response,some B cells differentiate into plasma cells.What do plasma cells produce in large quantities?

Correct AnswerverifiedShow Answer

The human immunodeficiency virus mounts a direct attack on TH cells by recognizing the ________ surface proteins associated with these cells.

Correct AnswerverifiedShow Answer

What is a necessary component of a powerful immune system?

Correct AnswerverifiedShow Answer

Which of the following describes passive immunity?

Correct AnswerverifiedShow Answer

What are on the surface of most vertebrate cells,acting as markers of "self"?

Correct AnswerverifiedShow Answer

Which of the following statements regarding hypersensitivity are true? (Check all that apply.)

Correct AnswerverifiedShow Answer

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What cells are phagocytes that can also present antigens to T_H cells?

Correct Answer
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Correct Answer
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The human immunodeficiency virus mounts a direct attack on T_H cells by recognizing the ________ surface proteins associated with these cells.

Correct Answer
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Correct Answer
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