Question 1

An immunization against cow pox should protect an individual:

Accepted Answer

A)  by increasing the production of lymphocytes by the bone marrow. 
B)  through the production of diverse antibodies. 
C)  by initiating a secondary immune response. 
D)  against other antigens with the same antigenic determinants. 
E)  against other bacterial infections. 
A)  by increasing the production of lymphocytes by the bone marrow. 
B)  through the production of diverse antibodies. 
C)  by initiating a secondary immune response. 
D)  against other antigens with the same antigenic determinants. 
E)  against other bacterial infections.

Question 2

The phagocyte that kills about 20 bacteria before dying is the ____.

Accepted Answer

A)  eosinophils 
B)  macrophage 
C)  neutrophils 
D)  dendritic cell 
E)  basophils 
A)  eosinophils 
B)  macrophage 
C)  neutrophils 
D)  dendritic cell 
E)  basophils

Question 3

T cells that react with self antigens are destroyed through:

Accepted Answer

A)  cytokinesis. 
B)  macrophages. 
C)  perforins. 
D)  apoptosis. 
E)  receptor mediated endocytosis. 
A)  cytokinesis. 
B)  macrophages. 
C)  perforins. 
D)  apoptosis. 
E)  receptor mediated endocytosis.

Question 4

Nonspecific cell responses depend on the actions of lymphocytes , natural killer cells, and dendritic cells.

Accepted Answer

A) True 
 B)False

Question 5

The lymphocytes that are involved in nonspecifically killing altered self-cells, such as tumor cells and virus infected cells, are the:

Accepted Answer

A)  monocytes 
B)  natural killer cells 
C)  neutrophils 
D)  B cells 
E)  eosinophils 
A)  monocytes 
B)  natural killer cells 
C)  neutrophils 
D)  B cells 
E)  eosinophils

Question 6

Monoclonal antibodies:

Accepted Answer

A)  have been linked as causative agents in some types of cancer. 
B)  are only produced by harvesting B cells from mice exposed to particular antigens. 
C)  include hCG, a component of commonly used home pregnancy tests. 
D)  are very specific for their target antigen, but are somewhat difficult to purify. 
E)  are produced by millions of genes. 
A)  have been linked as causative agents in some types of cancer. 
B)  are only produced by harvesting B cells from mice exposed to particular antigens. 
C)  include hCG, a component of commonly used home pregnancy tests. 
D)  are very specific for their target antigen, but are somewhat difficult to purify. 
E)  are produced by millions of genes.

Question 7

Match between columns
                        Premises: transferred from mother to fetus
natural exposure
immunization with a vaccine
injection with gamma globulin

Accepted Answer

The Answer of artificially induced active and naturally induced active is...

Question 8

The part of the antibody that binds an antigen:

Accepted Answer

A)  is known as the Fc fragment. 
B)  is called an epitope. 
C)  makes up the tail of the Y-shaped molecule. 
D)  is known as the Fab fragments. 
E)  is known as the constant segment. 
A)  is known as the Fc fragment. 
B)  is called an epitope. 
C)  makes up the tail of the Y-shaped molecule. 
D)  is known as the Fab fragments. 
E)  is known as the constant segment.

Question 9

Explain why transplanted organs are often rejected by their hosts.

Accepted Answer

Concepts to Consider: Every individual c

Question 10

During a specific defense, the process of increasing the numbers of the selected cells is called:

Accepted Answer

A)  mitotic expansion. 
B)  clonal selection. 
C)  divisional activation. 
D)  lymphocytic activation. 
E)  memory establishment. 
A)  mitotic expansion. 
B)  clonal selection. 
C)  divisional activation. 
D)  lymphocytic activation. 
E)  memory establishment.

Question 11

Each T cytotoxic cell expresses CD8 and 50,000 identical T cell receptors on its surface.

Accepted Answer

A) True 
 B)False

Question 12

Which statement about tissue transplants is TRUE?

Accepted Answer

A)  The source of graft rejection is T cell recognition of the foreign MHC antigens on the transplanted cells. 
B)  If transplants demonstrate a perfect match for all Rh antigens, then there is a 95% success rate. 
C)  Successful transplants require a complete match of all MHC antigens. 
D)  Xenotransplantation avoids the fundamental transplant mechanism of graft rejection. 
E)  Skin can be successfully transplanted between siblings and other closely related family members. 
A)  The source of graft rejection is T cell recognition of the foreign MHC antigens on the transplanted cells. 
B)  If transplants demonstrate a perfect match for all Rh antigens, then there is a 95% success rate. 
C)  Successful transplants require a complete match of all MHC antigens. 
D)  Xenotransplantation avoids the fundamental transplant mechanism of graft rejection. 
E)  Skin can be successfully transplanted between siblings and other closely related family members.

Question 13

____ are antibodies that activate the complement system.

Accepted Answer

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

Question 14

The basis of the immune system is:

Accepted Answer

A)  direct cell to cell contact. 
B)  distinguishing between self and nonself. 
C)  communicating between cells. 
D)  producing antibody action. 
E)  attacking invading objects. 
A)  direct cell to cell contact. 
B)  distinguishing between self and nonself. 
C)  communicating between cells. 
D)  producing antibody action. 
E)  attacking invading objects.

Question 15

Cell walls and cytokines of bacteria are examples of the evolution of resistance to the host immune response.

Accepted Answer

A) True 
 B)False

Question 16

Which statement about the immune system is correct?

Accepted Answer

A)  Memory cells are involved in a primary immune response. 
B)  Dendritic cells were first identified in the nervous system. 
C)  Interferons are specific proteins that block cell replication at the level of mitosis. 
D)  Natural killer cells are involved in both specific and nonspecific immune responses. 
E)  Defensins are one type of protective protein synthesized by T helper cells. 
A)  Memory cells are involved in a primary immune response. 
B)  Dendritic cells were first identified in the nervous system. 
C)  Interferons are specific proteins that block cell replication at the level of mitosis. 
D)  Natural killer cells are involved in both specific and nonspecific immune responses. 
E)  Defensins are one type of protective protein synthesized by T helper cells.

Question 17

Type II interferon inhibits viral replication and activates natural killer cells.

Accepted Answer

A) True 
 B)False

Question 18

Which statement about a secondary immune response is FALSE?

Accepted Answer

A)  It is a response to an antigen. 
B)  It may occur years after a primary response. 
C)  It involves memory cells. 
D)  It has a longer latent period than a primary response. 
E)  It is stimulated by less antigen than in a primary response. 
A)  It is a response to an antigen. 
B)  It may occur years after a primary response. 
C)  It involves memory cells. 
D)  It has a longer latent period than a primary response. 
E)  It is stimulated by less antigen than in a primary response.

Question 19

Which of the following statements concerning tumor necrosis factors (TNF) is FALSE?

Accepted Answer

A)  TNF can be secreted by macrophages. 
B)  TNF may stimulate the inflammatory response. 
C)  The release of large amounts of TNF brings down a high fever. 
D)  TNF kills cancer cells. 
E)  TNF can be secreted by lymphocytes. 
A)  TNF can be secreted by macrophages. 
B)  TNF may stimulate the inflammatory response. 
C)  The release of large amounts of TNF brings down a high fever. 
D)  TNF kills cancer cells. 
E)  TNF can be secreted by lymphocytes.

Question 20

Which of the following is considered a component of adaptive immunity?

Accepted Answer

A)  The skin 
B)  An antibody 
C)  A cuticle 
D)  The inflammatory response 
E)  Phagocytosis 
A)  The skin 
B)  An antibody 
C)  A cuticle 
D)  The inflammatory response 
E)  Phagocytosis

Exam 45: The Immune System Internal Defense

An immunization against cow pox should protect an individual:

The phagocyte that kills about 20 bacteria before dying is the ____.

T cells that react with self antigens are destroyed through:

Nonspecific cell responses depend on the actions of lymphocytes , natural killer cells, and dendritic cells.

The lymphocytes that are involved in nonspecifically killing altered self-cells, such as tumor cells and virus infected cells, are the:

Monoclonal antibodies:

The part of the antibody that binds an antigen:

Explain why transplanted organs are often rejected by their hosts.

During a specific defense, the process of increasing the numbers of the selected cells is called:

Each T cytotoxic cell expresses CD8 and 50,000 identical T cell receptors on its surface.

Which statement about tissue transplants is TRUE?

____ are antibodies that activate the complement system.

The basis of the immune system is:

Cell walls and cytokines of bacteria are examples of the evolution of resistance to the host immune response.

Which statement about the immune system is correct?

Type II interferon inhibits viral replication and activates natural killer cells.

Which statement about a secondary immune response is FALSE?

Which of the following statements concerning tumor necrosis factors (TNF) is FALSE?

Which of the following is considered a component of adaptive immunity?

A View of Life

Atoms and Molecules the Chemical Basis of Life

The Chemistry of Life Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp Energy-Releasing Pathways

Photosynthesis Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

Dna the Carrier of Genetic Information

Gene Expression

Gene Regulation

Dna Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure Growth and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function an Introduction

Protection Support and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology Population Ecology

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Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

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