Question 1

Immunity gained by the transfer of antibodies across the placental barrier is called

Accepted Answer

A) passive immunity. 
B) acquired immunity. 
C) humoral immunity. 
D) cell-mediated immunity. 
E) auto immunity. 
A) passive immunity. 
B) acquired immunity. 
C) humoral immunity. 
D) cell-mediated immunity. 
E) auto immunity.

Question 2

The human immunodeficiency virus mounts a direct attack on TH cells by recognizing the _______ surface proteins associated with these cells.

Accepted Answer

A) Fc 
B) CD4 
C) epitope 
D) cytokine 
A) Fc 
B) CD4 
C) epitope 
D) cytokine

Question 3

The development of T cells in the thymus is overseen by

Accepted Answer

A) suppressor cells. 
B) cytotoxic cells. 
C) mediator cells. 
D) inducer cells. 
E) helper cells. 
A) suppressor cells. 
B) cytotoxic cells. 
C) mediator cells. 
D) inducer cells. 
E) helper cells.

Question 4

Which of the following is true regarding cytokines?

Accepted Answer

A) Cytokines are secreted by TH cells and bind to receptors. 
B) Cytokines are immune cells involved in producing antibodies. 
C) Cytokines are secreted in high concentrations during infection. 
D) Cytokines bind to intracellular receptors. 
E) Cytokines protect in the attack of pathogens by phagocytosis. 
A) Cytokines are secreted by TH cells and bind to receptors. 
B) Cytokines are immune cells involved in producing antibodies. 
C) Cytokines are secreted in high concentrations during infection. 
D) Cytokines bind to intracellular receptors. 
E) Cytokines protect in the attack of pathogens by phagocytosis.

Question 5

Individuals who lack antigens on their red blood cell surfaces are more likely to be

Accepted Answer

A) A,Rh+. 
B) B,Rh+. 
C) AB,Rh-. 
D) O,Rh-. 
E) O,Rh+. 
A) A,Rh+. 
B) B,Rh+. 
C) AB,Rh-. 
D) O,Rh-. 
E) O,Rh+.

Question 6

Referring to the figure,which statement is false?

Accepted Answer

A) Cytokines are produced in both diagrams. 
B) Antigens are produced in both diagrams. 
C) Naïve cells are involved in diagram I. 
D) The humoral response represents diagram II. 
A) Cytokines are produced in both diagrams. 
B) Antigens are produced in both diagrams. 
C) Naïve cells are involved in diagram I. 
D) The humoral response represents diagram II.

Question 7

All of the following are types of leukocytes except

Accepted Answer

A) neutrophils. 
B) eosinophils and basophils. 
C) monocytes. 
D) T and B cells. 
E) erythrocytes. 
A) neutrophils. 
B) eosinophils and basophils. 
C) monocytes. 
D) T and B cells. 
E) erythrocytes.

Question 8

The ability of a vertebrate to generate millions of different lymphocytes is a result of its DNA undergoing

Accepted Answer

A) DNA rearrangement. 
B) DNA reestablishment. 
C) clonal variability. 
D) instructional variation. 
E) gene cloning. 
A) DNA rearrangement. 
B) DNA reestablishment. 
C) clonal variability. 
D) instructional variation. 
E) gene cloning.

Question 9

Which of the following is not a class of immunoglobin?

Accepted Answer

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

Question 10

The cellular defenses of vertebrates are complemented by a very effective chemical defense called the _________ system.

Accepted Answer

A) autoimmune 
B) relational 
C) lymphatic 
D) complement 
A) autoimmune 
B) relational 
C) lymphatic 
D) complement

Question 11

A friend tells you the following story."My aunt just received a heart transplant.Her doctors warned us that her body might reject the tissue.I just can't understand how that could happen as human hearts are made of the same tissues,aren't they?" Your correct response should be

Accepted Answer

A) "Yes,all human hearts are made of cardiac muscles." 
B) "Yes,all human hearts are made of cardiac muscles,except some humans have different tissues inside their hearts and this could lead to a tissue rejection by the recipient." 
C) "Yes,all human hearts are made of cardiac muscles.As far as the rejection of tissues goes,your aunt might have different antibodies than did the donor,which could lead to a rejection." 
D) "Yes,all human hearts are made of cardiac muscles.However,your aunt might have been given some type of drug during the transplant operation that might cause tissue rejection.You can never be too careful in a hospital,you know." 
E) "Yes,all human hearts are made of cardiac muscles.As far as the rejection issue,everyone has different MHC proteins on their tissues.Your aunt's immune system recognizes the 'self' tissues but can cause tissue rejection because of the 'nonself' tissue in her body having different MHC proteins." 
A) "Yes,all human hearts are made of cardiac muscles." 
B) "Yes,all human hearts are made of cardiac muscles,except some humans have different tissues inside their hearts and this could lead to a tissue rejection by the recipient." 
C) "Yes,all human hearts are made of cardiac muscles.As far as the rejection of tissues goes,your aunt might have different antibodies than did the donor,which could lead to a rejection." 
D) "Yes,all human hearts are made of cardiac muscles.However,your aunt might have been given some type of drug during the transplant operation that might cause tissue rejection.You can never be too careful in a hospital,you know." 
E) "Yes,all human hearts are made of cardiac muscles.As far as the rejection issue,everyone has different MHC proteins on their tissues.Your aunt's immune system recognizes the 'self' tissues but can cause tissue rejection because of the 'nonself' tissue in her body having different MHC proteins."

Question 12

The surface defenses of the body consist of the ______ and the mucous membranes lining the digestive and respiratory tracts.

Accepted Answer

A) bone marrow 
B) skin 
C) T-cells 
D) lymphocytes 
A) bone marrow 
B) skin 
C) T-cells 
D) lymphocytes

Question 13

Which of the following is not part of the inflammatory response?

Accepted Answer

A) Histamine and other chemicals are released,which produce redness,warmth,and edemA. 
B) Neutrophils,monocytes,and macrophages attack the invading microbes and contribute to the pus. 
C) Antibodies and interferons are produced against the antigens. 
D) Invading agent causes the release of pyrogens,which produce a fever. 
A) Histamine and other chemicals are released,which produce redness,warmth,and edemA. 
B) Neutrophils,monocytes,and macrophages attack the invading microbes and contribute to the pus. 
C) Antibodies and interferons are produced against the antigens. 
D) Invading agent causes the release of pyrogens,which produce a fever.

Question 14

__________ diseases are those abnormal conditions in which the body's defensive cells fail to make the self versus the nonself distinction correctly,and attack the body's own tissues.

Accepted Answer

A) Septic 
B) Nondiscrete 
C) Autoimmune 
D) Cancerous 
A) Septic 
B) Nondiscrete 
C) Autoimmune 
D) Cancerous

Question 15

If different types of blood are mixed together because different antibodies exist for the ABO and Rh factor antigens on the surface of red blood cells,

Accepted Answer

A) an autoimmune reaction will occur. 
B) an infection will occur. 
C) an agglutination reaction will occur. 
D) an inflammatory reaction will occur. 
E) a temperature response will occur. 
A) an autoimmune reaction will occur. 
B) an infection will occur. 
C) an agglutination reaction will occur. 
D) an inflammatory reaction will occur. 
E) a temperature response will occur.

Question 16

Select the incorrect statement regarding the class of proteins,known as interferons,that play a key role in body defenses.

Accepted Answer

A) There are three types of interferons,alpha,beta,and gammA. 
B) All cells of the body produce all three types of interferon. 
C) The secretion of gamma interferon is an immunological defense against infections and cancer. 
D) All interferons are polypeptides. 
E) Interferons are messengers that protect normal cells in the areas of infected cells from becoming infected. 
A) There are three types of interferons,alpha,beta,and gammA. 
B) All cells of the body produce all three types of interferon. 
C) The secretion of gamma interferon is an immunological defense against infections and cancer. 
D) All interferons are polypeptides. 
E) Interferons are messengers that protect normal cells in the areas of infected cells from becoming infected.

Question 17

_________ produce specific antibodies.

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 18

Lymphocyte receptors are encoded by genes that are assembled by _______ rearrangement
And mutation.

Accepted Answer

A) histochemical 
B) reversible 
C) gametic 
D) DNA 
A) histochemical 
B) reversible 
C) gametic 
D) DNA

Question 19

_________ are macrophage precursor 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 20

_________ are the source of antibody-producing 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

Exam 52: The Immune System

Immunity gained by the transfer of antibodies across the placental barrier is called

The human immunodeficiency virus mounts a direct attack on TH cells by recognizing the _______ surface proteins associated with these cells.

The development of T cells in the thymus is overseen by

Which of the following is true regarding cytokines?

Individuals who lack antigens on their red blood cell surfaces are more likely to be

Referring to the figure,which statement is false?

All of the following are types of leukocytes except

The ability of a vertebrate to generate millions of different lymphocytes is a result of its DNA undergoing

Which of the following is not a class of immunoglobin?

The cellular defenses of vertebrates are complemented by a very effective chemical defense called the _________ system.

A friend tells you the following story."My aunt just received a heart transplant.Her doctors warned us that her body might reject the tissue.I just can't understand how that could happen as human hearts are made of the same tissues,aren't they?" Your correct response should be

The surface defenses of the body consist of the ______ and the mucous membranes lining the digestive and respiratory tracts.

Which of the following is not part of the inflammatory response?

__________ diseases are those abnormal conditions in which the body's defensive cells fail to make the self versus the nonself distinction correctly,and attack the body's own tissues.

If different types of blood are mixed together because different antibodies exist for the ABO and Rh factor antigens on the surface of red blood cells,

Select the incorrect statement regarding the class of proteins,known as interferons,that play a key role in body defenses.

_________ produce specific antibodies.

Lymphocyte receptors are encoded by genes that are assembled by _______ rearrangement And mutation.

_________ are macrophage precursor cells.

_________ are the source of antibody-producing cells.

The Science of Biology

The Nature of Molecules

The Chemical Building Blocks of Life

Cell Structure

Membranes

Energy and Metabolism

How Cells Harvest Energy

Photosynthesis

Cell Communication

How Cells Divide

Sexual Reproduction and Meiosis

Patterns of Inheritance

Chromosomes Mapping and the Meiosis - Inheritance Connection

Dna: the Genetic Material

Genes and How They Work

Control of Gene Expression

Biotechnology

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Genes Within Populations

The Evidence for Evolution

The Origin of Species

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The Animal Body and Principles of Regulation

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The human immunodeficiency virus mounts a direct attack on T_H cells by recognizing the _______ surface proteins associated with these cells.