Question 1

At least __________ million people are now infected with HIV.

Accepted Answer

A) 1 
B) 6 
C) 12 
D) 20 
E) 40 
A) 1 
B) 6 
C) 12 
D) 20 
E) 40 E

Question 2

The body's first line of defense includes all of the following EXCEPT

Accepted Answer

A) intact skin. 
B) linings of body cavities. 
C) complement. 
D) chemical protection. 
E) resident populations of microbes. 
A) intact skin. 
B) linings of body cavities. 
C) complement. 
D) chemical protection. 
E) resident populations of microbes. C

Question 3

Which of the following have unique antigens that can stimulate an immune response?

Accepted Answer

A) viruses 
B) bacterial cell walls 
C) tumor cells 
D) bacterial DNA 
E) all of these 
A) viruses 
B) bacterial cell walls 
C) tumor cells 
D) bacterial DNA 
E) all of these E

Question 4

All of the following are true of the natural killer cells (NK cells) EXCEPT that they

Accepted Answer

A) are most active in innate responses. 
B) are central to adaptive immunity, like B and T cells. 
C) alert the immune system to the presence of antigens. 
D) kill weakened or dying body cells. 
E) combat viral infections and cancer. 
A) are most active in innate responses. 
B) are central to adaptive immunity, like B and T cells. 
C) alert the immune system to the presence of antigens. 
D) kill weakened or dying body cells. 
E) combat viral infections and cancer.

Question 5

Which antibody induces inflammation after antigen invasions?

Accepted Answer

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

Question 6

A person sensitive to bee venom may die minutes after a sting from

Accepted Answer

A) a collapse of the immune system. 
B) a clogging of the capillaries. 
C) anaphylactic shock. 
D) respiratory distress caused by excessive mucus. 
E) dehydration due to fluid loss. 
A) a collapse of the immune system. 
B) a clogging of the capillaries. 
C) anaphylactic shock. 
D) respiratory distress caused by excessive mucus. 
E) dehydration due to fluid loss.

Question 7

Which of the following can lyse pathogenic cells?

Accepted Answer

A) interleukins 
B) interferons 
C) TNF 
D) complement 
E) all of these 
A) interleukins 
B) interferons 
C) TNF 
D) complement 
E) all of these

Question 8

Which of the following is (are) true of fevers up to about 39ºC (102ºF)? They

Accepted Answer

A) enhance immunity. 
B) increase phagocyte activity. 
C) accelerate tissue repair. 
D) slow microbial growth. 
E) do all of these. 
A) enhance immunity. 
B) increase phagocyte activity. 
C) accelerate tissue repair. 
D) slow microbial growth. 
E) do all of these.

Question 9

Which of the following is NOT true concerning the cytokines? In vertebrates they

Accepted Answer

A) control many aspects of immunity. 
B) lyse pathogenic cells. 
C) serve in cell-to-cell communication. 
D) include the interleukins and interferons. 
E) include tumor necrosis factors. 
A) control many aspects of immunity. 
B) lyse pathogenic cells. 
C) serve in cell-to-cell communication. 
D) include the interleukins and interferons. 
E) include tumor necrosis factors.

Question 10

Antibodies are shaped like the letter

Accepted Answer

A) C. 
B) E. 
C) H. 
D) K. 
E) none of these. 
A) C. 
B) E. 
C) H. 
D) K. 
E) none of these.

Question 11

Which of the following is false regarding an antigen?

Accepted Answer

A) It can lead to the generation of an antibody. 
B) It identifies a pathogen as "foreign" to the body. 
C) It can be a protein. 
D) It passes directly between the plasma membranes of the pathogen and macrophage. 
E) It forms complexes with the MHC markers. 
A) It can lead to the generation of an antibody. 
B) It identifies a pathogen as "foreign" to the body. 
C) It can be a protein. 
D) It passes directly between the plasma membranes of the pathogen and macrophage. 
E) It forms complexes with the MHC markers.

Question 12

Use the above figure to answer questions 
  
-The letter "F" from the above figure represents

Accepted Answer

A) complement. 
B) MHC markers with antigen expressed to the surface of a cell. 
C) lysosome fusing with a phagosome. 
D) plasma membranes fusing. 
E) MHC recycling. 
A) complement. 
B) MHC markers with antigen expressed to the surface of a cell. 
C) lysosome fusing with a phagosome. 
D) plasma membranes fusing. 
E) MHC recycling.

Question 13

Which of the following is false regarding NK cells?

Accepted Answer

A) Helper T cells stimulate them to divide. 
B) They attack cells tagged for destruction by antibodies. 
C) They kill cells with normal MHC markers. 
D) They detect stress markers on cancerous cells. 
E) They detect and destroy cells with altered MHC markers. 
A) Helper T cells stimulate them to divide. 
B) They attack cells tagged for destruction by antibodies. 
C) They kill cells with normal MHC markers. 
D) They detect stress markers on cancerous cells. 
E) They detect and destroy cells with altered MHC markers.

Question 14

The cell-mediated response targets intracellular

Accepted Answer

A) bacteria. 
B) histamine. 
C) TCRs. 
D) MHC markers. 
E) all of these. 
A) bacteria. 
B) histamine. 
C) TCRs. 
D) MHC markers. 
E) all of these.

Question 15

The cell-mediated response involves all of the following EXCEPT

Accepted Answer

A) dendritic cells with antigen-MHC complexes. 
B) production of helper T cells. 
C) production of cytokines. 
D) production of cytotoxic cells. 
E) production of antibodies. 
A) dendritic cells with antigen-MHC complexes. 
B) production of helper T cells. 
C) production of cytokines. 
D) production of cytotoxic cells. 
E) production of antibodies.

Question 16

The white blood cells that may connect the nervous and immune systems are the

Accepted Answer

A) neutrophils. 
B) macrophages. 
C) mast cells. 
D) eosinophils. 
E) lymphocytes. 
A) neutrophils. 
B) macrophages. 
C) mast cells. 
D) eosinophils. 
E) lymphocytes.

Question 17

Passive immunity can be obtained by

Accepted Answer

A) having the disease. 
B) receiving a vaccination against the disease. 
C) receiving antibodies 
D) being exposed to a pathogen. 
E) all of these. 
A) having the disease. 
B) receiving a vaccination against the disease. 
C) receiving antibodies 
D) being exposed to a pathogen. 
E) all of these.

Question 18

Memory cell production is associated with

Accepted Answer

A) the body's first line of defense. 
B) the body's second line of defense. 
C) the body's third line of defense. 
D) complement production. 
E) acute inflammation. 
A) the body's first line of defense. 
B) the body's second line of defense. 
C) the body's third line of defense. 
D) complement production. 
E) acute inflammation.

Question 19

Antibodies are

Accepted Answer

A) proteins. 
B) steroids. 
C) polysaccharides. 
D) lipoproteins. 
E) any of these. 
A) proteins. 
B) steroids. 
C) polysaccharides. 
D) lipoproteins. 
E) any of these.

Question 20

Which antibody makes up most of the immunoglobulins in blood?

Accepted Answer

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

Exam 38: Immunity

At least __________ million people are now infected with HIV.

The body's first line of defense includes all of the following EXCEPT

Which of the following have unique antigens that can stimulate an immune response?

All of the following are true of the natural killer cells (NK cells) EXCEPT that they

Which antibody induces inflammation after antigen invasions?

A person sensitive to bee venom may die minutes after a sting from

Which of the following can lyse pathogenic cells?

Which of the following is (are) true of fevers up to about 39ºC (102ºF)? They

Which of the following is NOT true concerning the cytokines? In vertebrates they

Antibodies are shaped like the letter

Which of the following is false regarding an antigen?

Use the above figure to answer questions -The letter "F" from the above figure represents

Which of the following is false regarding NK cells?

The cell-mediated response targets intracellular

The cell-mediated response involves all of the following EXCEPT

The white blood cells that may connect the nervous and immune systems are the

Passive immunity can be obtained by

Memory cell production is associated with

Antibodies are

Which antibody makes up most of the immunoglobulins in blood?

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

A Closer Look at Cell Membranes

Ground Rules of Metabolism

Where It Startsphotosynthesis

Energy-Releasing Pathways

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Dna Structure and Function

From Dna to Protein

Controls Over Genes

Recombinant Dna and Genetic Engineering

The Macroevolutionary Puzzle

Emergence of Evolutionary Thought

Organizing Information About Species

The Origin and Evolution of Life

Viruses and Prokaryotes

Protists the Simplest Eukaryotes

Plants

Fungi

Animals: the Invertebrates

Animal Evolution the Chordates

Human Evolution: a Case Study

Plant Tissues

Plant Nutrition and Transport

Plant Reproduction

Plant Growth and Development

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Protection, Support, and Movement

Circulation

Respiration

Digestion and Human Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Population Ecology

Community Structure and Biodiversity

Ecosystems

The Biosphere

Human Impacts on the Biosphere

Filters