Question 1

You can reduce your chance of getting sick by doing all of the following, EXCEPT

Accepted Answer

A)   Keeping your immunizations up to date.
B)   Washing your hands frequently.
C)   Getting enough sleep.
D)   Avoiding strenuous exercise.E) C) and D)
F) B) and D)

Question 2

Autoimmune diseases occur when

Accepted Answer

A)   the body erroneously recognizes its own cells as foreign.
B)   bacteria severely damage the immune system.
C)   a virus such as HIV destroys the immune system.
D)   cancer creates an imbalance in the immune system.E) A) and B)
F) A) and C)

Question 3

The two main types of lymphocytes are T cells and B cells.

Accepted Answer

A) True 
 B)False

Question 4

Warts on the hands are caused by infection with a type of

Accepted Answer

A)   virus.
B)   prion.
C)   bacterium.
D)   fungus.E) B) and C)
F) A) and D)

Question 5

An example of an infection that was spread widely via air travel by infected people is

Accepted Answer

A)   hantavirus.
B)   malaria.
C)   new variant Creutzfeldt-Jakob disease.
D)   severe acute respiratory syndrome (SARS) .E) None of the above
F) A) and B)

Question 6

Illnesses caused by viruses are the most common forms of contagious disease.

Accepted Answer

A) True 
 B)False

Question 7

Microscopic, single-celled organisms that often cause recurrent diseases are called

Accepted Answer

A)   viruses.
B)   protozoa.
C)   parasites.
D)   bacteria.E) A) and B)
F) A) and C)

Question 8

Rocky Mountain spotted fever and typhus are caused by rickettsias.

Accepted Answer

A) True 
 B)False

Question 9

The ability of memory lymphocytes to remember previous infections is known as

Accepted Answer

A)   active immunity.
B)   acquired immunity.
C)   future immunity.
D)   passive immunity.E) A) and B)
F) A) and C)

Question 10

Approximately how many Canadians die of influenza annually?

Accepted Answer

A)   1000
B)   7500
C)   5500
D)   2500E) A) and B)
F) B) and C)

Question 11

Which of the following diseases is commonly known as the "kissing disease"?

Accepted Answer

A)   influenza
B)   mononucleosis
C)   meningitis
D)   chicken poxE) All of the above
F) C) and D)

Question 12

Hepatitis B is transmitted mainly by

Accepted Answer

A)   contaminated food.
B)   intimate sexual contact.
C)   contaminated blood.
D)   organ donation.E) B) and D)
F) A) and B)

Question 13

List the six general classes of pathogens described in your text; give at least one example of a disease caused by each type of pathogen.

Accepted Answer

The answer of List the six general classes of pathogens...

Question 14

Encephalitis is characterized by all of the following, EXCEPT:

Accepted Answer

A)   inflammation of the brain.
B)   nausea.
C)   lethargy.
D)   vomitingE) C) and D)
F) A) and D)

Question 15

Viral diseases are the most common form of disease.

Accepted Answer

A)   recurrent
B)   contagious
C)   spontaneous
D)   chronicE) B) and C)
F) All of the above

Question 16

All bacteria are harmful to the body.

Accepted Answer

A) True 
 B)False

Question 17

When the body recognizes a relatively harmless substance as a dangerous antigen and mounts an immune response, this response is called

Accepted Answer

A)   passive immunity.
B)   pathogenesis.
C)   active immunity.
D)   an allergic reaction.E) All of the above
F) None of the above

Question 18

What percentage of ulcers are caused by H pylori?

Accepted Answer

A)   50%
B)   90%
C)   70%
D)   20%E) All of the above
F) C) and D)

Question 19

During this type of immune system response, the body's defense system literally eats invading pathogens.

Accepted Answer

A)   acquired immunity
B)   adaptive immunity
C)   imagined immunity
D)   natural immunityE) B) and C)
F) A) and D)

Question 20

Viral encephalitis causes inflammation of the tissue in the

Accepted Answer

A)   brain.
B)   kidney.
C)   heart.
D)   liver.E) None of the above
F) A) and C)

Exam 9: Immunity and Infection

What percentage of ulcers are caused by H pylori?

Correct AnswerverifiedShow Answer

During this type of immune system response, the body's defense system literally eats invading pathogens.

Correct AnswerverifiedShow Answer

Warts on the hands are caused by infection with a type of

Correct AnswerverifiedShow Answer

List the six general classes of pathogens described in your text; give at least one example of a disease caused by each type of pathogen.

Correct AnswerverifiedShow Answer

Rocky Mountain spotted fever and typhus are caused by rickettsias.

Correct AnswerverifiedShow Answer

You can reduce your chance of getting sick by doing all of the following, EXCEPT

Correct AnswerverifiedShow Answer

Hepatitis B is transmitted mainly by

Correct AnswerverifiedShow Answer

Microscopic, single-celled organisms that often cause recurrent diseases are called

Correct AnswerverifiedShow Answer

All bacteria are harmful to the body.

Correct AnswerverifiedShow Answer

An example of an infection that was spread widely via air travel by infected people is

Correct AnswerverifiedShow Answer

Encephalitis is characterized by all of the following, EXCEPT:

Correct AnswerverifiedShow Answer

Illnesses caused by viruses are the most common forms of contagious disease.

Correct AnswerverifiedShow Answer

The ability of memory lymphocytes to remember previous infections is known as

Correct AnswerverifiedShow Answer

When the body recognizes a relatively harmless substance as a dangerous antigen and mounts an immune response, this response is called

Correct AnswerverifiedShow Answer

Which of the following diseases is commonly known as the "kissing disease"?

Correct AnswerverifiedShow Answer

Autoimmune diseases occur when

Correct AnswerverifiedShow Answer

Viral encephalitis causes inflammation of the tissue in the

Correct AnswerverifiedShow Answer

Viral diseases are the most common form of disease.

Correct AnswerverifiedShow Answer

The two main types of lymphocytes are T cells and B cells.

Correct AnswerverifiedShow Answer

Approximately how many Canadians die of influenza annually?

Correct AnswerverifiedShow Answer

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