Question 1

Major histocompatibility antigens are

Accepted Answer

A)  glycoproteins found in the cytoplasmic membranes of most vertebrate animal cells. 
B)  antigens attached to foreign invaders. 
C)  antigens that provoke allergic reactions. 
D)  not really antigens, but rather antibodies produced to mask foreign antigens. 
E)  antigens that must be processed by cells called histiocytes in order to be recognized by the immune system. 
A)  glycoproteins found in the cytoplasmic membranes of most vertebrate animal cells. 
B)  antigens attached to foreign invaders. 
C)  antigens that provoke allergic reactions. 
D)  not really antigens, but rather antibodies produced to mask foreign antigens. 
E)  antigens that must be processed by cells called histiocytes in order to be recognized by the immune system. A

Question 2

Which of the following statements regarding antibody function is FALSE?

Accepted Answer

A)  They can penetrate host cells to bind intracellular antigens. 
B)  They can prevent virus attachment to host cells. 
C)  They can bind more than one pathogen at a time, forming complexes. 
D)  They can facilitate phagocyte attack on bacteria with a capsule (glycocalyx). 
E)  They can facilitate cytotoxic attack by natural killer lymphocytes. 
A)  They can penetrate host cells to bind intracellular antigens. 
B)  They can prevent virus attachment to host cells. 
C)  They can bind more than one pathogen at a time, forming complexes. 
D)  They can facilitate phagocyte attack on bacteria with a capsule (glycocalyx). 
E)  They can facilitate cytotoxic attack by natural killer lymphocytes. A

Question 3

Which of the following function in agglutination?

Accepted Answer

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

Question 4

The type of immunoglobulin illustrated here is

Accepted Answer

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

Question 5

A single B lymphocyte can recognize multiple antigenic determinants.

Accepted Answer

A) True 
 B)False

Question 6

The body recognizes antigens by the three dimensional shapes of regions known as (antigenic/antibody/immunologic) determinants.

Accepted Answer

The answer of The body recognizes antigens by the three...

Question 7

Which of the following best describes IgM antibodies?

Accepted Answer

A)  They cause basophils and eosinophils to degranulate. 
B)  They are the most common type of antibody in the blood during the initial phases of an immune response. 
C)  They interact with phagocytes and NK cells. 
D)  They can cross the placenta to provide passive immunity. 
E)  They are the antibody class found in body secretions. 
A)  They cause basophils and eosinophils to degranulate. 
B)  They are the most common type of antibody in the blood during the initial phases of an immune response. 
C)  They interact with phagocytes and NK cells. 
D)  They can cross the placenta to provide passive immunity. 
E)  They are the antibody class found in body secretions.

Question 8

Secretory IgA antibodies are unique because they

Accepted Answer

A)  are Y- shaped molecules. 
B)  have unique light chains. 
C)  are present in the plasma. 
D)  are connected with J chains and short polypeptides to form dimers. 
E)  are present in lymph nodes. 
A)  are Y- shaped molecules. 
B)  have unique light chains. 
C)  are present in the plasma. 
D)  are connected with J chains and short polypeptides to form dimers. 
E)  are present in lymph nodes.

Question 9

Compare and contrast clonal deletion and clonal selection of B lymphocytes.

Accepted Answer

Both clonal deletion and clonal selectio

Question 10

The MALT lacks the tough outer capsule of a lymph node but functions in the same way.

Accepted Answer

A) True 
 B)False

Question 11

What types of antigens are bound to Class I MHC (major histocompatibility complex) proteins?

Accepted Answer

A)  exogenous antigens 
B)  endogenous antigens 
C)  autoantigens 
D)  both autoantigens and endogenous antigens 
E)  autoantigens, endogenous, and exogenous antigens 
A)  exogenous antigens 
B)  endogenous antigens 
C)  autoantigens 
D)  both autoantigens and endogenous antigens 
E)  autoantigens, endogenous, and exogenous antigens

Question 12

The most prevalent type of antibody in the blood is

Accepted Answer

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

Question 13

The process of (apoptosis/autolysis/differentiation) is a critical event in the development of self- tolerance.

Accepted Answer

The answer of The process of (apoptosis/autolysis/differentiation) is a critical...

Question 14

The antibody immune response is attributed to the action of

Accepted Answer

A)  monocytes. 
B)  macrophages. 
C)  B lymphocytes. 
D)  neutrophils. 
E)  T lymphocytes. 
A)  monocytes. 
B)  macrophages. 
C)  B lymphocytes. 
D)  neutrophils. 
E)  T lymphocytes.

Question 15

Some plasma cells persist long after an infection and contribute to secondary immune responses.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following recognizes and binds to MHC II antigens and helps stabilize the binding of epitopes to T cell receptors?

Accepted Answer

A)  MHC I 
B)  CD26 
C)  CCR3 
D)  CD4 
E)  CCR5 
A)  MHC I 
B)  CD26 
C)  CCR3 
D)  CD4 
E)  CCR5

Question 17

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...

Question 18

The protozoan that causes malaria is an intracellular parasite of red blood cells (RBCs). An adaptive immune response to this parasite is problematic because

Accepted Answer

A)  RBCs never enter lymphoid tissue. 
B)  complement cannot effectively destroy RBCs. 
C)  the parasite damages leukocytes along with RBCs. 
D)  red blood cells do not produce MHC and therefore do not display the fact that they have been infected by presenting antigen. 
E)  RBCs normally produce cytokines necessary for adaptive immune response, which this infection prevents. 
A)  RBCs never enter lymphoid tissue. 
B)  complement cannot effectively destroy RBCs. 
C)  the parasite damages leukocytes along with RBCs. 
D)  red blood cells do not produce MHC and therefore do not display the fact that they have been infected by presenting antigen. 
E)  RBCs normally produce cytokines necessary for adaptive immune response, which this infection prevents.

Question 19

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

Accepted Answer

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

Question 20

Discuss the importance of there being two types of adaptive immune responses (antibody and cell- mediated).

Accepted Answer

Pathogens (and other hazards to the body

Exam 16: Adaptive Immunity

Major histocompatibility antigens are

Which of the following statements regarding antibody function is FALSE?

Which of the following function in agglutination?

The type of immunoglobulin illustrated here is

A single B lymphocyte can recognize multiple antigenic determinants.

The body recognizes antigens by the three dimensional shapes of regions known as (antigenic/antibody/immunologic) determinants.

Which of the following best describes IgM antibodies?

Secretory IgA antibodies are unique because they

Compare and contrast clonal deletion and clonal selection of B lymphocytes.

The MALT lacks the tough outer capsule of a lymph node but functions in the same way.

What types of antigens are bound to Class I MHC (major histocompatibility complex) proteins?

The most prevalent type of antibody in the blood is

The process of (apoptosis/autolysis/differentiation) is a critical event in the development of self- tolerance.

The antibody immune response is attributed to the action of

Some plasma cells persist long after an infection and contribute to secondary immune responses.

Which of the following recognizes and binds to MHC II antigens and helps stabilize the binding of epitopes to T cell receptors?

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

The protozoan that causes malaria is an intracellular parasite of red blood cells (RBCs). An adaptive immune response to this parasite is problematic because

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

Discuss the importance of there being two types of adaptive immune responses (antibody and cell- mediated).

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 Disease, 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

Applied and Environmental Microbiology

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