Question 1

Which antibody type is usually produced in the greatest amount during a humoral reponse?

Accepted Answer

A)  IgA 
B)  IgD 
C)  IgM 
D)  IgE 
E)  IgG 
A)  IgA 
B)  IgD 
C)  IgM 
D)  IgE 
E)  IgG E

Question 2

During a successful secondary immune response:

Accepted Answer

A)  the inductive period will be longer than it was during a primary response. 
B)  greatly increased levels of IgM are produced. 
C)  long-lived plasma cells immediately begin secreting antibody. 
D)  the number of pathogens should remain below the threshold of disease. 
E)  there will be a stronger cell-mediated response, but a less vigorous humoral response. 
A)  the inductive period will be longer than it was during a primary response. 
B)  greatly increased levels of IgM are produced. 
C)  long-lived plasma cells immediately begin secreting antibody. 
D)  the number of pathogens should remain below the threshold of disease. 
E)  there will be a stronger cell-mediated response, but a less vigorous humoral response. D

Question 3

Which of the following vaccine types best mimics a genuine infection?

Accepted Answer

A)  a vaccine made with an attenuated pathogen 
B)  a vaccine made with an inactivated pathogen 
C)  a subunit vaccine 
D)  Both "a" and "c" closely mimic a genuine infection. 
E)  Both "b" and "c" closely mimic a genuine infection. 
A)  a vaccine made with an attenuated pathogen 
B)  a vaccine made with an inactivated pathogen 
C)  a subunit vaccine 
D)  Both "a" and "c" closely mimic a genuine infection. 
E)  Both "b" and "c" closely mimic a genuine infection. A

Question 4

Which of the following is a good example of how innate and adaptive immunity depend on each other?

Accepted Answer

A)  the release of perforin by cytotoxic T cells 
B)  presentation of the antigen by virally infected cells 
C)  phagocytosis of pathogens by neutrophils 
D)  the activation of humoral immunity by helper T cells 
E)  the ability of antibodies to function as opsonins 
A)  the release of perforin by cytotoxic T cells 
B)  presentation of the antigen by virally infected cells 
C)  phagocytosis of pathogens by neutrophils 
D)  the activation of humoral immunity by helper T cells 
E)  the ability of antibodies to function as opsonins

Question 5

Toll-like receptors:

Accepted Answer

A)  permit certain innate immune system cells to recognize certain molecules that are unique to microorganisms. 
B)  are found on the surface of cytotoxic T cells, and are used to recognize infected cells. 
C)  present foreign antigens on the surface of macrophages and dendritic cells. 
D)  are found on the surface of helper T cells, where they recognize antigens presented by antigen presenting cells. 
E)  are used by macrophages and dendritic cells to signal helper T cells that an infection is under way. 
A)  permit certain innate immune system cells to recognize certain molecules that are unique to microorganisms. 
B)  are found on the surface of cytotoxic T cells, and are used to recognize infected cells. 
C)  present foreign antigens on the surface of macrophages and dendritic cells. 
D)  are found on the surface of helper T cells, where they recognize antigens presented by antigen presenting cells. 
E)  are used by macrophages and dendritic cells to signal helper T cells that an infection is under way.

Question 6

How does HIV reduce immune function?

Accepted Answer

HIV infects and kills helper T-cells. Th

Question 7

In what way can the fever response be used to illustrate the point that response to pathogens can both be protective and harmful?

Accepted Answer

In many infections, certain cytokines re

Question 8

Which of the following immune system structures and their associated function is not correct?

Accepted Answer

A)  thymus: maturation of T-cells 
B)  lymph node: generation of adaptive immune responses in tissues 
C)  spleen: generation of adaptive immune responses in the blood 
D)  liver: maturation of B-cells 
E)  skin: a barrier to entry 
A)  thymus: maturation of T-cells 
B)  lymph node: generation of adaptive immune responses in tissues 
C)  spleen: generation of adaptive immune responses in the blood 
D)  liver: maturation of B-cells 
E)  skin: a barrier to entry

Question 9

Describe how cells of the innate immune system activate the adaptive immune system under certain circumstances.

Accepted Answer

An adaptive response will only occur if

Question 10

B-cells are able to recognize antigens because they have specific receptors on their surfaces that bind specific antigens. These receptors are called ________.

Accepted Answer

A)  toll-like receptors 
B)  pattern recognition receptors 
C)  MHC 
D)  IgG 
E)  IgM 
A)  toll-like receptors 
B)  pattern recognition receptors 
C)  MHC 
D)  IgG 
E)  IgM

Question 11

Which of the following is true about interferon?

Accepted Answer

A)  It is released by uninfected cells during a viral infection. 
B)  It is produced by virally infected cells during a viral infection, whereupon it inhibits further viral replication within the cells where it is made. 
C)  It is produced by virally infected cells to activate helper T-cells. 
D)  It is released by virally infected cells to induce an antiviral state in uninfected cells. 
E)  It is released by cells in lymph nodes to attract T cells to the lymph node. 
A)  It is released by uninfected cells during a viral infection. 
B)  It is produced by virally infected cells during a viral infection, whereupon it inhibits further viral replication within the cells where it is made. 
C)  It is produced by virally infected cells to activate helper T-cells. 
D)  It is released by virally infected cells to induce an antiviral state in uninfected cells. 
E)  It is released by cells in lymph nodes to attract T cells to the lymph node.

Question 12

Which of the following is not a correct and necessary step in the generation of a cell-mediated response?

Accepted Answer

A)  Antigen presenting cells are activated by pattern recognition. 
B)  Antigen presenting cells present antigen to helper T cells. 
C)  Antigen presenting cells activate cytotoxic T cells. 
D)  Helper T cells release cytokines that stimulate activate cytotoxic T cells. 
E)  Cytotoxic T cells recognize their specific antigen on the surface of infected cells. 
A)  Antigen presenting cells are activated by pattern recognition. 
B)  Antigen presenting cells present antigen to helper T cells. 
C)  Antigen presenting cells activate cytotoxic T cells. 
D)  Helper T cells release cytokines that stimulate activate cytotoxic T cells. 
E)  Cytotoxic T cells recognize their specific antigen on the surface of infected cells.

Question 13

Which of the following cell types can be considered to be part of the innate immune system?

Accepted Answer

A)  red blood cells 
B)  neutrophils 
C)  helper T cells 
D)  cytotoxic T cells 
E)  B cells 
A)  red blood cells 
B)  neutrophils 
C)  helper T cells 
D)  cytotoxic T cells 
E)  B cells

Which antibody type is usually produced in the greatest amount during a humoral reponse?

During a successful secondary immune response:

Which of the following vaccine types best mimics a genuine infection?

Which of the following is a good example of how innate and adaptive immunity depend on each other?

Toll-like receptors:

How does HIV reduce immune function?

In what way can the fever response be used to illustrate the point that response to pathogens can both be protective and harmful?

Which of the following immune system structures and their associated function is not correct?

Describe how cells of the innate immune system activate the adaptive immune system under certain circumstances.

B-cells are able to recognize antigens because they have specific receptors on their surfaces that bind specific antigens. These receptors are called ________.

Which of the following is true about interferon?

Which of the following is not a correct and necessary step in the generation of a cell-mediated response?

Which of the following cell types can be considered to be part of the innate immune system?

Living in a Microbial World

The Chemistry of Life

The Cell: Where Life Begins

A Field Guide to the Microorganisms

The Microbiology of History and the History of Microbiology

Microbial Genetics

Metabolism and Growth

Microbial Evolution: the Origin and Diversity of Life

An Ecologists Guide to Microbiology

The Nature of Disease: a Pathogens Perspective

Control of Microbial Growth

Epidemiology: Who, What, When, Where, and Why

The Future Is Here: Microorganisms and Biotechnology

Guess Whos Coming to Dinner: Microorganisms and Food

Better Living With Microorganisms: Industrial and Applied Microbiology

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Exam 11: Host Defense

Which antibody type is usually produced in the greatest amount during a humoral reponse?

During a successful secondary immune response:

Which of the following vaccine types best mimics a genuine infection?

Which of the following is a good example of how innate and adaptive immunity depend on each other?

Toll-like receptors:

How does HIV reduce immune function?

In what way can the fever response be used to illustrate the point that response to pathogens can both be protective and harmful?

Which of the following immune system structures and their associated function is not correct?

Describe how cells of the innate immune system activate the adaptive immune system under certain circumstances.

B-cells are able to recognize antigens because they have specific receptors on their surfaces that bind specific antigens. These receptors are called ________.

Which of the following is true about interferon?

Which of the following is not a correct and necessary step in the generation of a cell-mediated response?

Which of the following cell types can be considered to be part of the innate immune system?

Living in a Microbial World

The Chemistry of Life

The Cell: Where Life Begins

A Field Guide to the Microorganisms

The Microbiology of History and the History of Microbiology

Microbial Genetics

Metabolism and Growth

Microbial Evolution: the Origin and Diversity of Life

An Ecologists Guide to Microbiology

The Nature of Disease: a Pathogens Perspective

Control of Microbial Growth

Epidemiology: Who, What, When, Where, and Why

The Future Is Here: Microorganisms and Biotechnology

Guess Whos Coming to Dinner: Microorganisms and Food

Better Living With Microorganisms: Industrial and Applied Microbiology

Filters