Question 1

Which of the following is true of activation of mast cells?

Accepted Answer

A)  Causes the release of epinephrine 
B)  Is necessary for T-cell activation 
C)  Prevents the development of anaphylaxis 
D)  Causes the release of histamine 
A)  Causes the release of epinephrine 
B)  Is necessary for T-cell activation 
C)  Prevents the development of anaphylaxis 
D)  Causes the release of histamine

Question 2

A person has an infection and his phagocytes respond appropriately by releasing pyrogens,thereby resetting the body's thermostat.What happens next?

Accepted Answer

A)  He shivers, thereby producing heat. 
B)  He sweats and his blood vessels dilate, thereby losing heat. 
C)  He forms pus around the hypothalamus. 
D)  His body temperature declines. 
A)  He shivers, thereby producing heat. 
B)  He sweats and his blood vessels dilate, thereby losing heat. 
C)  He forms pus around the hypothalamus. 
D)  His body temperature declines.

Question 3

Which of the following is true of the T cell?

Accepted Answer

A)  It is activated in response to a specific antigen. 
B)  It engages in cell-mediated combat. 
C)  Its clones include killer T cells, helper T cells, suppressor T cells, and memory T cells. 
D)  All of the above are true. 
A)  It is activated in response to a specific antigen. 
B)  It engages in cell-mediated combat. 
C)  Its clones include killer T cells, helper T cells, suppressor T cells, and memory T cells. 
D)  All of the above are true.

Question 4

The plasma cells are least related to

Accepted Answer

A)  interferons. 
B)  B lymphocytes. 
C)  antibodies. 
D)  IgG, IgA, IgM, and IgE. 
A)  interferons. 
B)  B lymphocytes. 
C)  antibodies. 
D)  IgG, IgA, IgM, and IgE.

Question 5

Which of the following words are least characteristic of phagocytes?

Accepted Answer

A)  IgG, IgA, IgM, and IgE 
B)  Motile and fixed 
C)  Diapedesis and chemotaxis 
D)  Neutrophils, monocytes, and macrophages 
A)  IgG, IgA, IgM, and IgE 
B)  Motile and fixed 
C)  Diapedesis and chemotaxis 
D)  Neutrophils, monocytes, and macrophages

Question 6

What is the effect of a massive release of histamine?

Accepted Answer

A)  Jaundice 
B)  Anemia 
C)  Thrombosis 
D)  Wheezing and hypotension 
A)  Jaundice 
B)  Anemia 
C)  Thrombosis 
D)  Wheezing and hypotension

Question 7

Which of the following represents specific immunity?

Accepted Answer

A)  Inflammation 
B)  Interferons 
C)  Natural killer cells 
D)  B and T cells 
A)  Inflammation 
B)  Interferons 
C)  Natural killer cells 
D)  B and T cells

Question 8

IgE,IgA,IgM,and IgG are

Accepted Answer

A)  antigens. 
B)  interferons. 
C)  antibodies. 
D)  complement proteins. 
A)  antigens. 
B)  interferons. 
C)  antibodies. 
D)  complement proteins.

Question 9

Which of the following best describes an abscess?

Accepted Answer

A)  Blood-free serous fluid 
B)  Walled off area of dead cells and their secretions 
C)  A systemic infection 
D)  Spread of infected cells to the brain 
A)  Blood-free serous fluid 
B)  Walled off area of dead cells and their secretions 
C)  A systemic infection 
D)  Spread of infected cells to the brain

Question 10

Which of the following is not a step in the activation of a B lymphocyte?

Accepted Answer

A)  Antigen presentation 
B)  Production of antibody-secreting plasma cells 
C)  Activation by helper T cells 
D)  Activation of cells that engage in cell-to-cell combat 
A)  Antigen presentation 
B)  Production of antibody-secreting plasma cells 
C)  Activation by helper T cells 
D)  Activation of cells that engage in cell-to-cell combat

Question 11

Binding of the bee venom allergen to antibodies on the mast cells causes a massive release of which substance?

Accepted Answer

A)  Vaccine 
B)  Histamine 
C)  Bilirubin 
D)  Intrinsic factor 
A)  Vaccine 
B)  Histamine 
C)  Bilirubin 
D)  Intrinsic factor

Question 12

This is a group of proteins secreted by virally infected cells; the proteins prevent viral replication.

Accepted Answer

A)  Pyrogens 
B)  Antigens 
C)  Complement protein 
D)  Interferons 
A)  Pyrogens 
B)  Antigens 
C)  Complement protein 
D)  Interferons

Question 13

Which of the following stimulates memory cells to produce antibody-secreting plasma cells?

Accepted Answer

A)  An antitoxin 
B)  A booster shot 
C)  Gamma globulin 
D)  Antivenom 
A)  An antitoxin 
B)  A booster shot 
C)  Gamma globulin 
D)  Antivenom

Question 14

Because antibodies are carried by the blood,this type of immunity is also called

Accepted Answer

A)  immunotolerance. 
B)  cell-mediated immunity. 
C)  humoral immunity. 
D)  autoimmunity. 
A)  immunotolerance. 
B)  cell-mediated immunity. 
C)  humoral immunity. 
D)  autoimmunity.

Question 15

A vaccine

Accepted Answer

A)  is a gamma globulin. 
B)  conveys active immunity. 
C)  contains antibodies. 
D)  is the same as an antitoxin. 
A)  is a gamma globulin. 
B)  conveys active immunity. 
C)  contains antibodies. 
D)  is the same as an antitoxin.

Question 16

A febrile seizure is a seizure that

Accepted Answer

A)  causes a fever. 
B)  is caused only by intense shivering. 
C)  is caused by a fever. 
D)  is treated with antibiotics. 
A)  causes a fever. 
B)  is caused only by intense shivering. 
C)  is caused by a fever. 
D)  is treated with antibiotics.

Question 17

Which of the following are classified as killer,helper,suppressor,and memory?

Accepted Answer

A)  Granulocytes 
B)  T cells 
C)  Antibodies 
D)  Vaccines 
A)  Granulocytes 
B)  T cells 
C)  Antibodies 
D)  Vaccines

Question 18

Which of the following protective proteins swarm(s)the surface of a pathogen,punching holes in the membrane and enhancing phagocytosis?

Accepted Answer

A)  Interferons 
B)  Albumin 
C)  Complement 
D)  IgG 
A)  Interferons 
B)  Albumin 
C)  Complement 
D)  IgG

Question 19

Which group is incorrect?

Accepted Answer

A)  First line of defense: skin, mucous membrane, tears, sneezing 
B)  Specific immunity: B cells, T cells 
C)  Mechanical barriers: skin, mucous membrane 
D)  Chemical barriers: tears, saliva, stomach acid, B cells, T cells 
A)  First line of defense: skin, mucous membrane, tears, sneezing 
B)  Specific immunity: B cells, T cells 
C)  Mechanical barriers: skin, mucous membrane 
D)  Chemical barriers: tears, saliva, stomach acid, B cells, T cells

Question 20

Which of the following conditions is most common in people with AIDS (acquired immunodeficiency syndrome)?

Accepted Answer

A)  Anaphylaxis 
B)  Autoimmune diseases 
C)  Infections 
D)  Hypertension 
A)  Anaphylaxis 
B)  Autoimmune diseases 
C)  Infections 
D)  Hypertension

Exam 21: Immune System

Which of the following is true of activation of mast cells?

A person has an infection and his phagocytes respond appropriately by releasing pyrogens,thereby resetting the body's thermostat.What happens next?

Which of the following is true of the T cell?

The plasma cells are least related to

Which of the following words are least characteristic of phagocytes?

What is the effect of a massive release of histamine?

Which of the following represents specific immunity?

IgE,IgA,IgM,and IgG are

Which of the following best describes an abscess?

Which of the following is not a step in the activation of a B lymphocyte?

Binding of the bee venom allergen to antibodies on the mast cells causes a massive release of which substance?

This is a group of proteins secreted by virally infected cells; the proteins prevent viral replication.

Which of the following stimulates memory cells to produce antibody-secreting plasma cells?

Because antibodies are carried by the blood,this type of immunity is also called

A vaccine

A febrile seizure is a seizure that

Which of the following are classified as killer,helper,suppressor,and memory?

Which of the following protective proteins swarm(s)the surface of a pathogen,punching holes in the membrane and enhancing phagocytosis?

Which group is incorrect?

Which of the following conditions is most common in people with AIDS (acquired immunodeficiency syndrome)?

Introduction to the Human Body

Basic Chemistry

Cells

Cell Metabolism

Microbiology Basics

Tissues and Membranes

Integumentary System and Body Temperature

Skeletal System

Muscular System

Nervous System: Nervous Tissue and Brain

Nervous System: Spinal Cord and Peripheral Nerves

Autonomic Nervous System

Sensory System

Endocrine System

Blood

Anatomy of the Heart

Function of the Heart

Anatomy of the Blood Vessels

Functions of the Blood Vessels

Lymphatic System

Respiratory System

Digestive System

Urinary System

Water, Electrolyte, and Acid-Base Balance

Reproductive Systems

Human Development and Heredity

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