Question 1

T cells and B cells possess immune _______ that can recognize specific antigens.

Accepted Answer

A) detectors 
B) receptors 
C) inducers 
D) precursors 
A) detectors 
B) receptors 
C) inducers 
D) precursors B

Question 2

When a person is tested for HIV,if _______ to the HIV are present the test is called positive.

Accepted Answer

A) bacteria 
B) antigens 
C) antibodies 
D) T-cells 
E) natural killer cells 
A) bacteria 
B) antigens 
C) antibodies 
D) T-cells 
E) natural killer cells C

Question 3

In acquired immunologic tolerance

Accepted Answer

A) there is the lack of an immunological response against self. 
B) grafts of foreign tissue are rejected in the adult. 
C) foreign tissue introduced into the embryo is not recognized as nonself. 
D) embryos are implanted with immunosuppressive tissue. 
E) embryos are implanted with bone from the mother. 
A) there is the lack of an immunological response against self. 
B) grafts of foreign tissue are rejected in the adult. 
C) foreign tissue introduced into the embryo is not recognized as nonself. 
D) embryos are implanted with immunosuppressive tissue. 
E) embryos are implanted with bone from the mother. C

Question 4

All of the following are defense mechanisms employed by vertebrates except

Accepted Answer

A) specific antibodies. 
B) negative test,as in,not finding self-markers. 
C) skin and mucous membranes as barriers. 
D) positive test to recognize presence of nonself-markers. 
E) change in chromosomal composition. 
A) specific antibodies. 
B) negative test,as in,not finding self-markers. 
C) skin and mucous membranes as barriers. 
D) positive test to recognize presence of nonself-markers. 
E) change in chromosomal composition.

Question 5

Which part of the antibody molecule determines its role in the immune response?

Accepted Answer

A) two arms of the Y 
B) disulfide chains 
C) the heavy chains 
D) the stem of the Y 
E) the entire molecule 
A) two arms of the Y 
B) disulfide chains 
C) the heavy chains 
D) the stem of the Y 
E) the entire molecule

Question 6

Which is the major form of antibody in external secretions?

Accepted Answer

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

Question 7

Which of the following blood types should not be given to a young female with type AB Rh- blood?

Accepted Answer

A) B Rh- blood 
B) AB Rh- blood 
C) O Rh- blood 
D) A Rh- blood 
E) AB Rh+ blood 
A) B Rh- blood 
B) AB Rh- blood 
C) O Rh- blood 
D) A Rh- blood 
E) AB Rh+ blood

Question 8

MHC-II cell surface proteins are only found in

Accepted Answer

A) macrophages,B cells,and CD4+ cells. 
B) erythrocytes. 
C) acidophils. 
D) neutrophils. 
E) neutrophils and macrophages. 
A) macrophages,B cells,and CD4+ cells. 
B) erythrocytes. 
C) acidophils. 
D) neutrophils. 
E) neutrophils and macrophages.

Question 9

Which of the following mechanisms is not used to expel foreign pathogens?

Accepted Answer

A) producing antibodies 
B) urination 
C) sneezing 
D) coughing 
E) vomiting 
A) producing antibodies 
B) urination 
C) sneezing 
D) coughing 
E) vomiting

Question 10

__________ are helper and inducer cells.

Accepted Answer

A) B cells 
B) Macrophages 
C) Plasma cells 
D) T cells 
E) Monocytes 
A) B cells 
B) Macrophages 
C) Plasma cells 
D) T cells 
E) Monocytes

Question 11

In the humoral response,B cells produce plasma cells,which in turn produce large quantities of

Accepted Answer

A) agglutinations that are specific for foreign antigens. 
B) interferons specific for foreign antigens. 
C) immunoglobulins specific for foreign antigens. 
D) antibodies specific for foreign antigens. 
E) macrophages specific for foreign antigens. 
A) agglutinations that are specific for foreign antigens. 
B) interferons specific for foreign antigens. 
C) immunoglobulins specific for foreign antigens. 
D) antibodies specific for foreign antigens. 
E) macrophages specific for foreign antigens.

Question 12

When a "new" antigen first challenges the immune system,if the primary immune response produces B cells,what are the fates of those B cells?
I-Some of the B cells become plasma cells that secrete antibodies.
II-Some of the B cells become memory cells and can produce a swifter response if the body encounters that particular antigen again.
III-Some of the B cells secrete chemicals called pyrogens that travel to the brain inducing a fever.

Accepted Answer

A) just II 
B) just I 
C) II and III 
D) I and II 
E) I,II,and III 
A) just II 
B) just I 
C) II and III 
D) I and II 
E) I,II,and III

Question 13

The procedure of injecting a harmless microbe in order to confer resistance to a dangerous one is called

Accepted Answer

A) vaccination. 
B) immunity. 
C) antibody modification. 
D) interferon activation. 
E) immunoglobulin synthesis. 
A) vaccination. 
B) immunity. 
C) antibody modification. 
D) interferon activation. 
E) immunoglobulin synthesis.

Question 14

Which is a treatment for autoimmune disease?
I-administration of corticosteroids
II-administration of nonsteroidal anti-inflammatory drugs
III-aspirin

Accepted Answer

A) I only 
B) II only 
C) II and III 
D) I and II 
E) I,II,and III 
A) I only 
B) II only 
C) II and III 
D) I and II 
E) I,II,and III

Question 15

Which of the following regarding antigens is true?

Accepted Answer

A) A large antigen is likely to have many different epitopes,each of which can stimulate a distinct immune response. 
B) An antigen is a molecule which promotes a general immune response. 
C) Bacteria do not contain antigens. 
D) Antigens can only be recognized by their specificity. 
E) The most effective antigens are small simple amino acid complexes. 
A) A large antigen is likely to have many different epitopes,each of which can stimulate a distinct immune response. 
B) An antigen is a molecule which promotes a general immune response. 
C) Bacteria do not contain antigens. 
D) Antigens can only be recognized by their specificity. 
E) The most effective antigens are small simple amino acid complexes.

Question 16

Nonself molecules called antigens cause the vertebrate system to produce proteins known as

Accepted Answer

A) interferons. 
B) antibodies. 
C) complements. 
D) immunoglobulins. 
E) phagocytes. 
A) interferons. 
B) antibodies. 
C) complements. 
D) immunoglobulins. 
E) phagocytes.

Question 17

Which of the following is not a nonspecific defense of the vertebrate system?

Accepted Answer

A) cells that ingest invading microbes 
B) antimicrobial proteins that kill pathogens 
C) immunoglobulin synthesis 
D) the inflammatory response 
E) the temperature response 
A) cells that ingest invading microbes 
B) antimicrobial proteins that kill pathogens 
C) immunoglobulin synthesis 
D) the inflammatory response 
E) the temperature response

Question 18

Which of the following is not a part of the normal humoral immune response?

Accepted Answer

A) IgM is produced first. 
B) It activates the complement system. 
C) IgA is secreted in external secretions like saliva. 
D) IgG antibodies are produceD. 
E) It promotes phagocytosis. 
A) IgM is produced first. 
B) It activates the complement system. 
C) IgA is secreted in external secretions like saliva. 
D) IgG antibodies are produceD. 
E) It promotes phagocytosis.

Question 19

The cell-mediated immune response is brought about by

Accepted Answer

A) B cells. 
B) T cells. 
C) erythrocytes. 
D) fibroblasts. 
E) lysozymes. 
A) B cells. 
B) T cells. 
C) erythrocytes. 
D) fibroblasts. 
E) lysozymes.

Question 20

Histamine and prostaglandins are called

Accepted Answer

A) immunoglobulins. 
B) antibodies. 
C) inflammatory agents. 
D) allergic agents. 
E) pyrogens. 
A) immunoglobulins. 
B) antibodies. 
C) inflammatory agents. 
D) allergic agents. 
E) pyrogens.

Exam 52: The Immune System

T cells and B cells possess immune _______ that can recognize specific antigens.

When a person is tested for HIV,if _______ to the HIV are present the test is called positive.

In acquired immunologic tolerance

All of the following are defense mechanisms employed by vertebrates except

Which part of the antibody molecule determines its role in the immune response?

Which is the major form of antibody in external secretions?

Which of the following blood types should not be given to a young female with type AB Rh- blood?

MHC-II cell surface proteins are only found in

Which of the following mechanisms is not used to expel foreign pathogens?

__________ are helper and inducer cells.

In the humoral response,B cells produce plasma cells,which in turn produce large quantities of

The procedure of injecting a harmless microbe in order to confer resistance to a dangerous one is called

Which is a treatment for autoimmune disease? I-administration of corticosteroids II-administration of nonsteroidal anti-inflammatory drugs III-aspirin

Which of the following regarding antigens is true?

Nonself molecules called antigens cause the vertebrate system to produce proteins known as

Which of the following is not a nonspecific defense of the vertebrate system?

Which of the following is not a part of the normal humoral immune response?

The cell-mediated immune response is brought about by

Histamine and prostaglandins are called

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Which of the following blood types should not be given to a young female with type AB Rh^- blood?