Question 1

All of the following have correctly matched antibody class with their function except:

Accepted Answer

A)  IgD - function largely unknown
B)  IgE - binds to mast cells and basophils
C)  IgM - plays a role in mediating allergies and asthma
D)  IgG - crosses placentaE) B) and C)
F) All of the above

Question 2

Injection of a patient with ready-made antibodies produced in a different host is an example of what type of immunity?

Accepted Answer

A)  Artificially acquired active immunity
B)  Naturally acquired active immunity
C)  Naturally acquired passive immunity
D)  Artificially acquired passive immunityE) B) and D)
F) All of the above

Question 3

How do vaccines work? Can you describe 2 potential hazards of vaccines? In your opinion why aren't there vaccines for every disease?

Accepted Answer

Vaccines work by introducing a weakened ...

Question 4

Colostrum,which contains high concentrations of antibodies passed onto an infant from a mother during breast-feeding,is an example of what type of immunity?

Accepted Answer

A)  Artifically acquired active immunity
B)  Naturally acquired active immunity
C)  Naturally acquired passive immunity
D)  Artifically acquired passive immunityE) B) and D)
F) A) and D)

Question 5

Immunity that is mediated by T lymphocytes is called _____.

Accepted Answer

A)  cell-mediated
B)  antibody-mediated
C)  innate acquired
D)  innate naturalE) A) and D)
F) All of the above

Question 6

The ability of the humoral response to produce a vast array of antibodies,each with uniqueness to a given antigen,is called:

Accepted Answer

A)  memory
B)  hyperimmune serum
C)  heterogeneity
D)  homogeneityE) B) and C)
F) A) and D)

Question 7

This image represents a/an:

Accepted Answer

A)  antigen
B)  toxin
C)  antibody
D)  haptenE) A) and B)
F) A) and C)

Question 8

A protein molecule produced in a host in response to an antigen which is capable of binding specifically to that antigen is a/an:

Accepted Answer

A)  perforin
B)  antigen
C)  antibody
D)  cytokineE) None of the above
F) All of the above

Question 9

Agglutination:

Accepted Answer

A)  is inactivation of bacterial toxins due to the binding of an antibody
B)  leads to the ingestion of the particle by macrophages due to opsonization
C)  requires complement
D)  occurs when antibody-antigen complexes form large clumped particlesE) None of the above
F) A) and B)

Question 10

Antibodies produced by the humoral response help eliminate foreign antigens by all of the following ways except:

Accepted Answer

A)  neutralization
B)  opsonization
C)  complement activation
D)  natural killer cell activationE) A) and B)
F) A) and C)

Question 11

All of the following pertain to the role of activated helper T cells in cellular mediated immunity except:

Accepted Answer

A)  differentiation into memory TC cells
B)  recognizes MHC with antigenic peptide on macrophages
C)  differentiation into TH1 cells
D)  differentiation into TH2 cellsE) A) and D)
F) B) and D)

Question 12

Privileged sites:

Accepted Answer

A)  have M cells interspersed between epithelial cells
B)  include the uterus, anterior chamber of the eye and testes
C)  have especially strong immune responses against viruses
D)  are not accessible to most pathogensE) None of the above
F) All of the above

Question 13

Which of the following T cells has CD8 receptors on its surface and recognizes virus-infected cells by viral antigens presented on macrophages?

Accepted Answer

A)  NK cells
B)  TC cells
C)  TD cells
D)  TH cellsE) A) and D)
F) None of the above

Question 14

Cells that are neither T nor B cells,but function to non-specifically kill cells infected by viruses are called:

Accepted Answer

A)  natural killer cells
B)  phagocytic cells
C)  memory cells
D)  blood cellsE) B) and D)
F) B) and C)

Question 15

Which of the following is false about haptens?

Accepted Answer

A)  A hapten alone cannot act as an antigen.
B)  A large protein (to which a hapten can bind) alone cannot act as an antigen.
C)  Only the combination of a hapten and a large protein can act as an antigen.
D)  Haptens bind to antibodies preventing them from binding to a large protein.E) C) and D)
F) All of the above

Question 16

Antigens that have the capacity to activate huge numbers of immune T cells non-specifically resulting in a large immune response that results in diseases are _____.

Accepted Answer

A)  self antigens
B)  non-self antigens
C)  superantigens
D)  antitoxinsE) B) and C)
F) A) and C)

Question 17

The process whereby lymphocytes which recognize self antigens are removed,thus producing tolerance in the host is:

Accepted Answer

A)  heterogeneity
B)  memory
C)  primary response
D)  clonal deletionE) A) and B)
F) A) and C)

Question 18

All of the following are types of vaccines except:

Accepted Answer

A)  killed whole bacteria
B)  purified active toxin
C)  toxoid
D)  live virusE) A) and C)
F) B) and C)

Question 19

All of the following correctly describe the structure of an antibody molecule except:

Accepted Answer

A)  two identical light chains
B)  heavy and light chains held together by disulfide bonds
C)  binds 2 antigens per molecule
D)  two Fc fragments and one Fab fragmentE) C) and D)
F) None of the above

Question 20

All of the following statements about immunization are true except:

Accepted Answer

A)  live vaccines are potentially hazardous to pregnant females
B)  passive immunization can provide immediate immunity to an exposed person
C)  vaccines need to be practical in terms of stability and use
D)  recombinant DNA vaccines inject the entire genomes of nonvirulent pathogensE) B) and C)
F) None of the above

Exam 17: Immunology I: Basic Principles of Adaptive Immunity and Immunization

The process whereby lymphocytes which recognize self antigens are removed,thus producing tolerance in the host is:

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Cells that are neither T nor B cells,but function to non-specifically kill cells infected by viruses are called:

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All of the following have correctly matched antibody class with their function except:

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Which of the following T cells has CD8 receptors on its surface and recognizes virus-infected cells by viral antigens presented on macrophages?

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All of the following correctly describe the structure of an antibody molecule except:

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Which of the following is false about haptens?

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Antibodies produced by the humoral response help eliminate foreign antigens by all of the following ways except:

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A protein molecule produced in a host in response to an antigen which is capable of binding specifically to that antigen is a/an:

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Immunity that is mediated by T lymphocytes is called _____.

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How do vaccines work? Can you describe 2 potential hazards of vaccines? In your opinion why aren't there vaccines for every disease?

Correct AnswerAnswered by ExamLex AIVaccines work by introducing a weakened ...View AnswerShow Answer

All of the following statements about immunization are true except:

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Agglutination:

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The ability of the humoral response to produce a vast array of antibodies,each with uniqueness to a given antigen,is called:

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This image represents a/an:

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All of the following are types of vaccines except:

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Colostrum,which contains high concentrations of antibodies passed onto an infant from a mother during breast-feeding,is an example of what type of immunity?

Correct AnswerverifiedShow Answer

All of the following pertain to the role of activated helper T cells in cellular mediated immunity except:

Correct AnswerverifiedShow Answer

Antigens that have the capacity to activate huge numbers of immune T cells non-specifically resulting in a large immune response that results in diseases are _____.

Correct AnswerverifiedShow Answer

Privileged sites:

Correct AnswerverifiedShow Answer

Injection of a patient with ready-made antibodies produced in a different host is an example of what type of immunity?

Correct AnswerverifiedShow Answer

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Vaccines work by introducing a weakened ...
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