Question 1

Sam works in construction and stepped on a sharp nail.He can't remember the last time he had a tetanus shot.What type of immunity is the most important for him to receive?

Accepted Answer

A)  Natural active immunity
B)  Artificial passive immunity
C)  Natural passive immunity
D)  Artificial active immunity
E)  None of the choices will help him.F) A) and C)
G) D) and E)

Question 2

Cell surface markers involved in immune reactions

Accepted Answer

A)  are the result of genetic expression.
B)  function in recognition of self molecules.
C)  receive and transmit chemical messages among other cells of the system.
D)  aid in cellular development.
E)  all of the choices are correct.F) C) and D)
G) B) and E)

Question 3

Which process involves antibodies cross-linking cells or particles into large aggregates?

Accepted Answer

A)  Neutralization
B)  Opsonization
C)  Complement fixation
D)  Agglutination
E)  Anamnestic responseF) C) and D)
G) B) and E)

Question 4

All of the following characterize the secondary response to an antigen except

Accepted Answer

A)  a higher titer of antibody is produced than the primary response.
B)  a longer persistence of antibody than with the primary response.
C)  a quicker rate of antibody synthesis than the primary response.
D)  it is mostly IgM antibodies that are produced.
E)  it is also known as the anamnestic response.F) B) and E)
G) A) and B)

Question 5

Acellular vaccines and subunit vaccines

Accepted Answer

A)  contain modified bacterial exotoxin molecules.
B)  are always genetically engineered.
C)  contain select antigenic components of a pathogen rather than whole cells or viruses.
D)  confer passive immunity.
E)  All of the choices are correct.F) B) and E)
G) C) and D)

Question 6

Reliable vaccines exist for all of the following diseases except

Accepted Answer

A)  Malaria.
B)  Botulism.
C)  Cholera.
D)  Yellow fever.
E)  Rabies.F) A) and D)
G) None of the above

Question 7

Which of the following conditions have been conclusively proven to be linked to childhood vaccinations?

Accepted Answer

A)  Autism
B)  Diabetes
C)  Asthma
D)  All of the choices are correct.
E)  None of the choices are correct.F) B) and C)
G) None of the above

Question 8

A disadvantage of using an attenuated live microbe in a vaccine is that it can conceivably mutate back to a virulent strain.

Accepted Answer

A) True 
 B)False

Question 9

Alloantigens are the basis for an individual's blood group and MHC profile.

Accepted Answer

A) True 
 B)False

Question 10

Superantigens are

Accepted Answer

A)  body tissues that the immune system mistakes as foreign.
B)  cell markers found in some member of a species but not in other members.
C)  bacterial toxins that activate T cells at a 100 times greater rate than other antigens.
D)  those that evoke allergic reactions.
E)  None of the choices are correct.F) A) and B)
G) A) and E) C

Question 11

Gamma globulin can be given as immunotherapy to confer artificial passive immunity.

Accepted Answer

A) True 
 B)False

Question 12

Which process involves antibodies coating microorganisms in order to facilitate phagocytosis?

Accepted Answer

A)  Neutralization
B)  Opsonization
C)  Complement fixation
D)  Agglutination
E)  Anamnestic responseF) B) and C)
G) C) and D)

Question 13

After secreting antibodies during an immune response, plasma cells then differentiate into memory cells.

Accepted Answer

A) True 
 B)False  False

Question 14

The most significant cells in graft rejection are

Accepted Answer

A)  helper T cells.
B)  suppressor T cells.
C)  cytotoxic T cells.
D)  B cells.
E)  natural killer (NK)  cells.F) A) and B)
G) B) and E)

Question 15

In the secondary response to an antigen, the predominant antibody is

Accepted Answer

A)  IgD.
B)  IgE.
C)  IgG.
D)  IgM.
E)  IgA.F) A) and E)
G) A) and C)

Question 16

During presentation of APC-bound antigen, macrophages secrete the cytokine, _____, that activates T helper cells.

Accepted Answer

The answer of During presentation of APC-bound antigen, macrophages secrete...

Question 17

Certain body sites contain sequestered molecules, called _____ that escaped assessment during development of immune tolerance and are mistaken as foreign.

Accepted Answer

The answer of Certain body sites contain sequestered molecules, called...

Question 18

Which immunoglobulin class/es can fix complement?

Accepted Answer

A)  IgM only
B)  IgG only
C)  IgD only
D)  IgM and IgG
E)  IgE and IgAF) B) and D)
G) A) and D) D

Question 19

The molecular fragment on an antigen molecule that a lymphocyte recognizes and responds to is called a/an

Accepted Answer

A)  epitope.
B)  hapten.
C)  antigen binding site.
D)  variable region.
E)  None of the choices are correct.F) A) and D)
G) B) and C)

Question 20

Helper T cells

Accepted Answer

A)  secrete antibodies.
B)  function in allergic reactions.
C)  directly destroy target cells.
D)  suppress immune reactions.
E)  activate B cells and other T cells.F) C) and D)
G) B) and D)

Exam 15: Adaptive, Specific Immunity and Immunization

Sam works in construction and stepped on a sharp nail.He can't remember the last time he had a tetanus shot.What type of immunity is the most important for him to receive?

Correct AnswerverifiedShow Answer

Cell surface markers involved in immune reactions

Correct AnswerverifiedShow Answer

Which process involves antibodies cross-linking cells or particles into large aggregates?

Correct AnswerverifiedShow Answer

All of the following characterize the secondary response to an antigen except

Correct AnswerverifiedShow Answer

Acellular vaccines and subunit vaccines

Correct AnswerverifiedShow Answer

Reliable vaccines exist for all of the following diseases except

Correct AnswerverifiedShow Answer

Which of the following conditions have been conclusively proven to be linked to childhood vaccinations?

Correct AnswerverifiedShow Answer

A disadvantage of using an attenuated live microbe in a vaccine is that it can conceivably mutate back to a virulent strain.

Correct AnswerverifiedShow Answer

Alloantigens are the basis for an individual's blood group and MHC profile.

Correct AnswerverifiedShow Answer

Superantigens are

Correct AnswerverifiedC

Gamma globulin can be given as immunotherapy to confer artificial passive immunity.

Correct AnswerverifiedShow Answer

Which process involves antibodies coating microorganisms in order to facilitate phagocytosis?

Correct AnswerverifiedShow Answer

After secreting antibodies during an immune response, plasma cells then differentiate into memory cells.

Correct AnswerverifiedFalse

The most significant cells in graft rejection are

Correct AnswerverifiedShow Answer

In the secondary response to an antigen, the predominant antibody is

Correct AnswerverifiedShow Answer

During presentation of APC-bound antigen, macrophages secrete the cytokine, _____, that activates T helper cells.

Correct AnswerverifiedShow Answer

Certain body sites contain sequestered molecules, called _____ that escaped assessment during development of immune tolerance and are mistaken as foreign.

Correct AnswerverifiedShow Answer

Which immunoglobulin class/es can fix complement?

Correct AnswerverifiedD

The molecular fragment on an antigen molecule that a lymphocyte recognizes and responds to is called a/an

Correct AnswerverifiedShow Answer

Helper T cells

Correct AnswerverifiedShow Answer

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C

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False

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D

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