Question 1

The immunoglobulin superfamily does not include which of the following?

Accepted Answer

A)  B cells 
B)  the receptors of T cells 
C)  MHC 
D)  None of them, they are all members of the immunoglobulin superfamily. 
A)  B cells 
B)  the receptors of T cells 
C)  MHC 
D)  None of them, they are all members of the immunoglobulin superfamily.

Question 2

Humans have approximately how many chemokines?

Accepted Answer

A)  10 
B)  20 
C)  40 
D)  80 
A)  10 
B)  20 
C)  40 
D)  80

Question 3

Perforins are associated with which of the following?

Accepted Answer

A)  B cells 
B)  macrophages 
C)  NK cells 
D)  Th cells 
A)  B cells 
B)  macrophages 
C)  NK cells 
D)  Th cells

Question 4

Which of the following is true of stem cells?

Accepted Answer

A)  They can only become B cells. 
B)  They can only become T cells. 
C)  They can become either B cells or T cells. 
D)  They are not involved in the production of lymphocytes. 
A)  They can only become B cells. 
B)  They can only become T cells. 
C)  They can become either B cells or T cells. 
D)  They are not involved in the production of lymphocytes.

Question 5

Class switch recombination does which of the following?

Accepted Answer

A)  creates a change at a single nucleotide 
B)  copies nucleotide sequences from a pseudogene V into the V(J)D 
C)  swaps exons of the constant region between highly repetitive regions 
D)  all of these 
A)  creates a change at a single nucleotide 
B)  copies nucleotide sequences from a pseudogene V into the V(J)D 
C)  swaps exons of the constant region between highly repetitive regions 
D)  all of these

Question 6

Which of the following have adaptive immunity?

Accepted Answer

A)  all plants and animals 
B)  only animals 
C)  only vertebrates 
D)  only mammals 
A)  all plants and animals 
B)  only animals 
C)  only vertebrates 
D)  only mammals

Question 7

Approximately what percentage of patients who contract rheumatic fever develop heart valve damage?

Accepted Answer

A)  3% 
B)  10% 
C)  40% 
D)  60% 
A)  3% 
B)  10% 
C)  40% 
D)  60%

Question 8

Which of the following types of cells is responsible for long term immunity?

Accepted Answer

A)  macrophages 
B)  dendritic cells 
C)  B cells 
D)  T cells 
A)  macrophages 
B)  dendritic cells 
C)  B cells 
D)  T cells

Question 9

Class II MHC molecules do which if the following?

Accepted Answer

A)  pick up dead antigens 
B)  seek out antigen molecules that have been synthesized inside a virus infected cell 
C)  both a and b 
D)  neither a nor b 
A)  pick up dead antigens 
B)  seek out antigen molecules that have been synthesized inside a virus infected cell 
C)  both a and b 
D)  neither a nor b

Question 10

Which of the following diseases have been eliminated by the use of vaccines?

Accepted Answer

A)  HIV 
B)  heptatitis C 
C)  tuberculosis 
D)  malaria 
E)  None of these have been eliminated, all of these are still active areas of research. 
A)  HIV 
B)  heptatitis C 
C)  tuberculosis 
D)  malaria 
E)  None of these have been eliminated, all of these are still active areas of research.

Question 11

Which of the following is true for T cells?

Accepted Answer

A)  T cells interact directly with antigens. 
B)  T cells are nonspecific, they recognize all antigens. 
C)  Each T cell is specific for a single antigen. 
D)  Each T cell can recognize a wide variety of antigens. 
A)  T cells interact directly with antigens. 
B)  T cells are nonspecific, they recognize all antigens. 
C)  Each T cell is specific for a single antigen. 
D)  Each T cell can recognize a wide variety of antigens.

Question 12

Which of the following is not a lymphoid organ?

Accepted Answer

A)  spleen 
B)  thymus 
C)  tonsils 
D)  None of these, they are all lymphoid organs. 
A)  spleen 
B)  thymus 
C)  tonsils 
D)  None of these, they are all lymphoid organs.

Question 13

Which of the following brings a portion of an antigen to the surface of an infected cell?

Accepted Answer

A)  antibodies 
B)  B cells 
C)  MHC molecules 
D)  T cells 
A)  antibodies 
B)  B cells 
C)  MHC molecules 
D)  T cells

Question 14

Approximately what percentage of patients who are not treated for strep throat might be expected to develop heart valve damage?

Accepted Answer

A)  1.2% 
B)  3% 
C)  40% 
D)  43% 
A)  1.2% 
B)  3% 
C)  40% 
D)  43%

Question 15

Which of the following immunoglobulin classes has the smallest molecular weight?

Accepted Answer

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

Question 16

Which of the following types of cells is responsible for the release of antibodies?

Accepted Answer

A)  macrophages 
B)  dendritic cells 
C)  B cells 
D)  T cells 
A)  macrophages 
B)  dendritic cells 
C)  B cells 
D)  T cells

Question 17

How do glucocorticoids regulate the synthesis of cytokines?

Accepted Answer

A)  by direct interaction with their genes 
B)  by interaction with transcription factors 
C)  by both a and b 
D)  by neither a nor b 
A)  by direct interaction with their genes 
B)  by interaction with transcription factors 
C)  by both a and b 
D)  by neither a nor b

Question 18

Which of the following is true of immunoglobulins?

Accepted Answer

A)  Only the heavy chains have both constant and variable regions. 
B)  Only the light chains have both constant and variable regions. 
C)  Both light and heavy chains have both constant and variable regions. 
D)  There are no constant regions in any immunoglobulin chains. 
A)  Only the heavy chains have both constant and variable regions. 
B)  Only the light chains have both constant and variable regions. 
C)  Both light and heavy chains have both constant and variable regions. 
D)  There are no constant regions in any immunoglobulin chains.

Question 19

HIV binds strongly to which of the following?

Accepted Answer

A)  CD3 
B)  CD4 
C)  CD 8 
D)  all of these 
A)  CD3 
B)  CD4 
C)  CD 8 
D)  all of these

Question 20

Cytokines perform which of the following functions?

Accepted Answer

A)  bringing leukocytes to injured tissue 
B)  helping leukocytes migrate out of the blood vessels 
C)  activate leukocytes 
D)  all of the above 
A)  bringing leukocytes to injured tissue 
B)  helping leukocytes migrate out of the blood vessels 
C)  activate leukocytes 
D)  all of the above

Exam 31: Immunochemistry

The immunoglobulin superfamily does not include which of the following?

Humans have approximately how many chemokines?

Perforins are associated with which of the following?

Which of the following is true of stem cells?

Class switch recombination does which of the following?

Which of the following have adaptive immunity?

Approximately what percentage of patients who contract rheumatic fever develop heart valve damage?

Which of the following types of cells is responsible for long term immunity?

Class II MHC molecules do which if the following?

Which of the following diseases have been eliminated by the use of vaccines?

Which of the following is true for T cells?

Which of the following is not a lymphoid organ?

Which of the following brings a portion of an antigen to the surface of an infected cell?

Approximately what percentage of patients who are not treated for strep throat might be expected to develop heart valve damage?

Which of the following immunoglobulin classes has the smallest molecular weight?

Which of the following types of cells is responsible for the release of antibodies?

How do glucocorticoids regulate the synthesis of cytokines?

Which of the following is true of immunoglobulins?

HIV binds strongly to which of the following?

Cytokines perform which of the following functions?

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Benzene and Its Derivatives

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Chirality: the Handedness of Molecules

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Carboxylic Anhydrides, Esters, and Amides

Carbohydrates

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Chemical Communications: Neurotransmitters and Hormones

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Bioenergetics: How the Body Converts Food to Energy

Specific Catabolic Pathways: Carbohydrate, Lipid, and Protein Metabolism

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