Question 1

IgA antibodies are involved in innate immunity.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following statements about antibody-mediated immunity is CORRECT?

Accepted Answer

A)  It primarily defends against viruses that have already infected cells.
B)  It is responsible for transplant tissue rejection.
C)  It protects the body against cells that become cancerous.
D)  It defends against parasites,bacteria,and viruses.
E)  It primarily defends against bacteria that have already infected cells.F) A) and E)
G) A) and C)

Question 3

All of the following are components of nonspecific immunity EXCEPT

Accepted Answer

A)  skin.
B)  phagocytes.
C)  complement.
D)  lysozyme.
E)  B cells.F) A) and D)
G) D) and E)

Question 4

Strategies to fight HIV include

Accepted Answer

A)  inhibition of the reverse transcriptase enzyme.
B)  inhibition of virus assembly.
C)  prevention of HIV entering healthy cells.
D)  prevention of other infections.
E)  a combination of all of the abovE.F) All of the above
G) B) and D)

Question 5

During the inflammatory response,dilation of blood vessels is caused by

Accepted Answer

A)  nitric oxide.
B)  histamine.
C)  cytokines.
D)  phagocytes.
E)  both histamine and nitric oxidE.F) B) and D)
G) A) and E)

Question 6

Which of the following is true of both T cells and B cells?

Accepted Answer

A)  They produce effector cells against specific pathogens.
B)  They are produced from stem cells of the lymphatic system.
C)  They can attack and destroy invading pathogens.
D)  They typically have a short life span.
E)  All of these statements are truE.F) C) and D)
G) None of the above E

Question 7

Which of the following is NOT involved in nonspecific defenses?

Accepted Answer

A)  natural killer cells
B)  monocytes
C)  neutrophils
D)  mast cells
E)  B cellsF) A) and C)
G) All of the above

Question 8

Recent research has shown that anti-inflammatory drugs can impair immune response to a vaccination.This makes sense since __________ participate in the inflammation response,and also act as APCs to present antigens to __________ that in turn activate __________ which produce antibodies.

Accepted Answer

A)  macrophages;cytotoxic T cells;helper T cells
B)  mast cells;helper T cells;macrophages
C)  neutrophils;cytotoxic T cells;B cells
D)  macrophages;helper T cells;B cellsE) A) and B)
F) All of the above

Question 9

Phagocytosis is a process in which a cell

Accepted Answer

A)  takes in foreign particles and destroys them.
B)  creates molecules and then excretes them.
C)  lyses itself.
D)  merges with another cell forming antibodies.
E)  adheres to another cell.F) B) and C)
G) None of the above

Question 10

The allergic response is primarily mediated by _____ antibodies.

Accepted Answer

A)  IgG
B)  IgM
C)  IgA
D)  IgE
E)  IgDF) C) and D)
G) A) and E)

Question 11

Generally speaking,vaccinations are effective in combating future infections because they induce the production of

Accepted Answer

A)  helper T cells.
B)  neutrophils.
C)  prostaglandins.
D)  mutations in the host genome.
E)  memory cells.F) B) and D)
G) C) and E)

Question 12

HIV infection and the subsequent destruction of which cell type is most devastating to overall immune system function?

Accepted Answer

A)  cytotoxic T cells
B)  memory B cells
C)  helper T cells
D)  monocytes
E)  natural killer cellsF) A) and C)
G) A) and E)

Question 13

Which of the following is NOT an autoimmune disease?

Accepted Answer

A)  multiple sclerosis
B)  type I diabetes
C)  rheumatoid arthritis
D)  HIV
E)  All of these conditions are autoimmune diseases.F) A) and B)
G) A) and E) D

Question 14

The protection provided through transfer of antibodies from mother to fetus is an example of

Accepted Answer

A)  active immunity.
B)  passive immunity.
C)  cell-mediated immunity.
D)  clonal selection.
E)  autoimmunity.F) B) and C)
G) A) and C)

Question 15

Most innate immune responses rely on

Accepted Answer

A)  recognition of specific antigens.
B)  pathogens being engulfed and destroyed.
C)  plasma cells to secrete antibodies.
D)  IgM antibodies.
E)  clonal selection to replicate specific lymphocytes.F) C) and D)
G) A) and D)

Question 16

You are trying to develop a new anti-inflammatory medication.Which of the following would be a possible approach?

Accepted Answer

A)  suppressing cytokine release
B)  blocking vasodilation
C)  preventing leukocyte movement through the capillary wall
D)  suppressing the release of nitric oxide from endothelial cells
E)  All of these approaches would have an anti-inflammatory effect.F) A) and C)
G) A) and B)

Question 17

The membrane attack complex is involved in specific immune defense mechanisms.

Accepted Answer

A) True 
 B)False

Question 18

Recall Bruno Lemaitre's experiment on Toll protein in Drosophila.In a similar experiment,you wanted to test a single fruit fly for the presence of the Toll protein,so you prick it with a needle coated in fungal spores.The fly dies a week later.Which of the following statements is TRUE?

Accepted Answer

A)  This is evidence that the Toll protein is present.
B)  This is evidence that the Toll protein is not present.
C)  The Toll protein is only found in humans.
D)  This is inconclusive evidence.E) A) and B)
F) None of the above D

Question 19

Which of the following pairs is incorrectly matched?

Accepted Answer

A)  macrophage;class II MHC protein
B)  B cell;immunoglobulin
C)  B cell;IL-2
D)  helper T cell;CD4
E)  cytotoxic T cell;CD8F) A) and B)
G) B) and E)

Question 20

Antigens are

Accepted Answer

A)  non-self proteins.
B)  proteins on the surface of B-cell membranes.
C)  proteins that consist of two light and two heavy chain polypeptide chains.
D)  proteins on the surface of macrophage membranes.
E)  proteins on the surface of T-cell membranes.F) A) and E)
G) B) and D)

Exam 41: Immune Systems

IgA antibodies are involved in innate immunity.

Correct AnswerverifiedShow Answer

Which of the following statements about antibody-mediated immunity is CORRECT?

Correct AnswerverifiedShow Answer

All of the following are components of nonspecific immunity EXCEPT

Correct AnswerverifiedShow Answer

Strategies to fight HIV include

Correct AnswerverifiedShow Answer

During the inflammatory response,dilation of blood vessels is caused by

Correct AnswerverifiedShow Answer

Which of the following is true of both T cells and B cells?

Correct AnswerverifiedE

Which of the following is NOT involved in nonspecific defenses?

Correct AnswerverifiedShow Answer

Recent research has shown that anti-inflammatory drugs can impair immune response to a vaccination.This makes sense since __________ participate in the inflammation response,and also act as APCs to present antigens to __________ that in turn activate __________ which produce antibodies.

Correct AnswerverifiedShow Answer

Phagocytosis is a process in which a cell

Correct AnswerverifiedShow Answer

The allergic response is primarily mediated by _____ antibodies.

Correct AnswerverifiedShow Answer

Generally speaking,vaccinations are effective in combating future infections because they induce the production of

Correct AnswerverifiedShow Answer

HIV infection and the subsequent destruction of which cell type is most devastating to overall immune system function?

Correct AnswerverifiedShow Answer

Which of the following is NOT an autoimmune disease?

Correct AnswerverifiedD

The protection provided through transfer of antibodies from mother to fetus is an example of

Correct AnswerverifiedShow Answer

Most innate immune responses rely on

Correct AnswerverifiedShow Answer

You are trying to develop a new anti-inflammatory medication.Which of the following would be a possible approach?

Correct AnswerverifiedShow Answer

The membrane attack complex is involved in specific immune defense mechanisms.

Correct AnswerverifiedShow Answer

Recall Bruno Lemaitre's experiment on Toll protein in Drosophila.In a similar experiment,you wanted to test a single fruit fly for the presence of the Toll protein,so you prick it with a needle coated in fungal spores.The fly dies a week later.Which of the following statements is TRUE?

Correct AnswerverifiedD

Which of the following pairs is incorrectly matched?

Correct AnswerverifiedShow Answer

Antigens are

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E

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Recent research has shown that anti-inflammatory drugs can impair immune response to a vaccination.This makes sense since participate in the inflammation response,and also act as APCs to present antigens to that in turn activate __ which produce antibodies.

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D

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D

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