Question 1

What is the result when a dendritic cell phagocytizes a microbe and processes it?

Accepted Answer

A)  activation of the dendritic cell to become a plasma cell 
B)  display of epitope-MHC I complexes on the surface of the cell 
C)  suppression of the immune response to the microbe 
D)  display of microbial fragments with CD8 glycoproteins 
E)  display of microbial epitope-MHC II complexes on the cell surface 
A)  activation of the dendritic cell to become a plasma cell 
B)  display of epitope-MHC I complexes on the surface of the cell 
C)  suppression of the immune response to the microbe 
D)  display of microbial fragments with CD8 glycoproteins 
E)  display of microbial epitope-MHC II complexes on the cell surface

Question 2

Cytotoxic T lymphocytes insert (CD95/lectin/perforin)into the membranes of the cells they target as a first step in killing.

Accepted Answer

The answer of Cytotoxic T lymphocytes insert (CD95/lectin/perforin)into the membranes...

Question 3

T lymphocytes mature in the (bone marrow/lymph node/thymus).

Accepted Answer

The answer of T lymphocytes mature in the (bone marrow/lymph...

Question 4

Professional antigen-presenting cells (APCs)include B cells,macrophages,and (dendritic/plasma/T)cells.

Accepted Answer

The answer of Professional antigen-presenting cells (APCs)include B cells,macrophages,and (dendritic/plasma/T)cells....

Question 5

Which of the following statements concerning the chemical structure of an antibody is FALSE?

Accepted Answer

A)  Antibodies are formed of four polypeptide chains. 
B)  Antibodies have two long peptide chains known as heavy chains. 
C)  Antibodies have two short peptide chains known as light chains. 
D)  The stem and arm are connected by a hinge. 
E)  The heavy and light chains are connected by hydrogen bonds. 
A)  Antibodies are formed of four polypeptide chains. 
B)  Antibodies have two long peptide chains known as heavy chains. 
C)  Antibodies have two short peptide chains known as light chains. 
D)  The stem and arm are connected by a hinge. 
E)  The heavy and light chains are connected by hydrogen bonds.

Question 6

The IgG molecules which cross the placenta and circulate in a baby's bloodstream provide the baby with natural (active/innate/passive)immunity.

Accepted Answer

The answer of The IgG molecules which cross the placenta...

Question 7

Which of the following is an exogenous antigen?

Accepted Answer

A)  a bacterium inside a cell 
B)  a virus inside a cell 
C)  a bacterium outside a cell 
D)  a noninfected human cell 
E)  the malaria parasite inside a red blood cell 
A)  a bacterium inside a cell 
B)  a virus inside a cell 
C)  a bacterium outside a cell 
D)  a noninfected human cell 
E)  the malaria parasite inside a red blood cell

Question 8

What type of immunity is produced by the body when a person contracts a disease?

Accepted Answer

A)  innate immunity 
B)  naturally acquired passive immunity 
C)  artificially acquired active immunity 
D)  artificially acquired passive immunity 
E)  naturally acquired active immunity 
A)  innate immunity 
B)  naturally acquired passive immunity 
C)  artificially acquired active immunity 
D)  artificially acquired passive immunity 
E)  naturally acquired active immunity

Question 9

Class II MHC are found on

Accepted Answer

A)  the skin. 
B)  red blood cells. 
C)  cytoplasmic membranes of nucleated cells. 
D)  muscle cells. 
E)  professional antigen-presenting cells. 
A)  the skin. 
B)  red blood cells. 
C)  cytoplasmic membranes of nucleated cells. 
D)  muscle cells. 
E)  professional antigen-presenting cells.

Question 10

Which of the following statements concerning plasma cells is FALSE?

Accepted Answer

A)  They live for many years and function as memory cells. 
B)  They are descended from activated B cells. 
C)  They can produce large quantities of antibodies on a daily basis. 
D)  They secrete a single type of antibody molecule specific for a single epitope. 
E)  The antibodies they produce can remain in circulation for weeks. 
A)  They live for many years and function as memory cells. 
B)  They are descended from activated B cells. 
C)  They can produce large quantities of antibodies on a daily basis. 
D)  They secrete a single type of antibody molecule specific for a single epitope. 
E)  The antibodies they produce can remain in circulation for weeks.

Question 11

Which of the following statements concerning specific immunity is FALSE?

Accepted Answer

A)  It is the third line of defense. 
B)  It has memory. 
C)  It changes little with repeated exposure to the same pathogen. 
D)  It is acquired. 
E)  It is the body's ability to respond to specific invading pathogens. 
A)  It is the third line of defense. 
B)  It has memory. 
C)  It changes little with repeated exposure to the same pathogen. 
D)  It is acquired. 
E)  It is the body's ability to respond to specific invading pathogens.

Question 12

Which of the following statements about lymphocytes is FALSE?

Accepted Answer

A)  Once they are mature, they migrate to secondary lymphoid organs. 
B)  B and T lymphocytes can be differentiated under the bright-field light microscope. 
C)  Lymphocytes have integral surface proteins by which they can be recognized. 
D)  The glycoproteins on the surface of a lymphocyte are designated with the prefix CD, for "cluster of differentiation." 
E)  Lymphocytes have different types of CD molecules in their cytoplasmic membranes. 
A)  Once they are mature, they migrate to secondary lymphoid organs. 
B)  B and T lymphocytes can be differentiated under the bright-field light microscope. 
C)  Lymphocytes have integral surface proteins by which they can be recognized. 
D)  The glycoproteins on the surface of a lymphocyte are designated with the prefix CD, for "cluster of differentiation." 
E)  Lymphocytes have different types of CD molecules in their cytoplasmic membranes.

Question 13

What are the steps involved in B cell activation?

Accepted Answer

B cell activation involves many steps.Fi

Question 14

Plasma cells produce (antibody/chemokine/cytotoxic)molecules.

Accepted Answer

The answer of Plasma cells produce (antibody/chemokine/cytotoxic)molecules....

Question 15

The most prevalent type of antibody in the blood is

Accepted Answer

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

Question 16

The antibody function known as (agglutination/neutralization/opsonization)is illustrated in Figure

Accepted Answer

The answer of   
The antibody function known as...

Question 17

Molecules with a molecular mass less than 5000 daltons can become antigens when they bind to carrier molecules.

Accepted Answer

A) True 
 B)False

Question 18

Clonal deletion of developing T lymphocytes takes place in which location(s)in the body?

Accepted Answer

A)  the bone marrow 
B)  the spleen 
C)  the liver 
D)  both the bone marrow and the spleen 
E)  the thymus 
A)  the bone marrow 
B)  the spleen 
C)  the liver 
D)  both the bone marrow and the spleen 
E)  the thymus

Question 19

Which of the following function in agglutination?

Accepted Answer

A)  IgA antibodies 
B)  IgG antibodies 
C)  IgE antibodies 
D)  IgD antibodies 
E)  IgA and IgG antibodies 
A)  IgA antibodies 
B)  IgG antibodies 
C)  IgE antibodies 
D)  IgD antibodies 
E)  IgA and IgG antibodies

Question 20

The surface of each B lymphocyte is covered with about 250,000 to 500,000 identical copies of (BCR/MHC/TCR).

Accepted Answer

The answer of The surface of each B lymphocyte is...

Exam 16: Adaptive Immunity

What is the result when a dendritic cell phagocytizes a microbe and processes it?

Cytotoxic T lymphocytes insert (CD95/lectin/perforin)into the membranes of the cells they target as a first step in killing.

T lymphocytes mature in the (bone marrow/lymph node/thymus).

Professional antigen-presenting cells (APCs)include B cells,macrophages,and (dendritic/plasma/T)cells.

Which of the following statements concerning the chemical structure of an antibody is FALSE?

The IgG molecules which cross the placenta and circulate in a baby's bloodstream provide the baby with natural (active/innate/passive)immunity.

Which of the following is an exogenous antigen?

What type of immunity is produced by the body when a person contracts a disease?

Class II MHC are found on

Which of the following statements concerning plasma cells is FALSE?

Which of the following statements concerning specific immunity is FALSE?

Which of the following statements about lymphocytes is FALSE?

What are the steps involved in B cell activation?

Plasma cells produce (antibody/chemokine/cytotoxic)molecules.

The most prevalent type of antibody in the blood is

The antibody function known as (agglutination/neutralization/opsonization)is illustrated in Figure

Molecules with a molecular mass less than 5000 daltons can become antigens when they bind to carrier molecules.

Clonal deletion of developing T lymphocytes takes place in which location(s)in the body?

Which of the following function in agglutination?

The surface of each B lymphocyte is covered with about 250,000 to 500,000 identical copies of (BCR/MHC/TCR).

A Brief History of Microbiology

The Chemistry of Microbiology

Cell Structure and Function

Microscopy, Staining, and Classification

Microbial Metabolism

Microbial Nutrition and Growth

Microbial Genetics

Recombinant DNA Technology

Controlling Microbial Growth in the Environment

Controlling Microbial Growth in the Body: Antimicrobial Drugs

Characterizing and Classifying Prokaryotes

Characterizing and Classifying Eukaryotes

Characterizing and Classifying Viruses, Viroids, and Prions

Infection, Infectious Diseases, and Epidemiology

Innate Immunity

Immunization and Immune Testing

Immune Disorders

Pathogenic Gram Positive Bacteria

Pathogenic Gram-Negative Cocci and Bacilli

Rickettsias, Chlamydias, Spirochetes, and Vibrios

Pathogenic Fungi

Parasitic Protozoa, Helminths, and Arthropod Vectors

Pathogenic DNA Viruses

Pathogenic RNA Viruses

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