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Chapter 25: Microbial Diseases of the Digestive System
Structure and
Function
Bacteria
Viruses
Protozoa
and Fungi
Helminthic
Parasites
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FINAL ROUND
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Topic 1: Structure and Function
$100 Question
Which of the following is an accessory organ of
the digestive tract?
a. pharynx
b. stomach
c. liver
d. mouth
ANSWER
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© 2013 Pearson Education, Inc.
Topic 1: Structure and Function
$100 Answer
Which of the following is an accessory organ of
the digestive tract?
a. pharynx
b. stomach
c. liver
d. mouth
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Topic 1: Structure and Function
$200 Question
Approximately what percentage of the immune
system is located in the intestinal tract?
a. 20%
b. 40%
c. 60%
d. 80%
ANSWER
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© 2013 Pearson Education, Inc.
Topic 1: Structure and Function
$200 Answer
Approximately what percentage of the immune
system is located in the intestinal tract?
a. 20%
b. 40%
c. 60%
d. 80%
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Topic 1: Structure and Function
$300 Question
The population of microorganisms in the large
intestine is composed mostly of
a. aerobes and anaerobes.
b. anaerobes and facultative anaerobes.
c. aerobes and facultative aerobes.
d. obligate anaerobes.
ANSWER
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Topic 1: Structure and Function
$300 Answer
The population of microorganisms in the large
intestine is composed mostly of
a. aerobes and anaerobes.
b. anaerobes and facultative anaerobes.
c. aerobes and facultative aerobes.
d. obligate anaerobes.
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Topic 1: Structure and Function
$400 Question
Paneth cells, which are capable of phagocytizing
bacteria, are found in the
a. small intestine.
b. large intestine.
c. stomach.
d. pancreas.
ANSWER
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Topic 1: Structure and Function
$400 Answer
Paneth cells, which are capable of phagocytizing
bacteria, are found in the
a. small intestine.
b. large intestine.
c. stomach.
d. pancreas.
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Topic 1: Structure and Function
$500 Question
Approximately how many species of bacteria
have been isolated from the oral cavity?
a. 50
b. 100
c. 500
d. 700
ANSWER
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Topic 1: Structure and Function
$500 Answer
Approximately how many species of bacteria
have been isolated from the oral cavity?
a. 50
b. 100
c. 500
d. 700
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Topic 2: Bacteria
$100 Question
Severe diarrhea accompanied by blood or mucus
is called
a. food poisoning.
b. intoxication.
c. gastroenteritis.
d. dysentery.
ANSWER
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Topic 2: Bacteria
$100 Answer
Severe diarrhea accompanied by blood or mucus
is called
a. food poisoning.
b. intoxication.
c. gastroenteritis.
d. dysentery.
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Topic 2: Bacteria
$200 Question
When microbes are allowed to incubate in food,
the situation is called
a. temperature abuse.
b. food intoxication.
c. food infection.
d. food poisoning.
ANSWER
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Topic 2: Bacteria
$200 Answer
When microbes are allowed to incubate in food,
the situation is called
a. temperature abuse.
b. food intoxication.
c. food infection.
d. food poisoning.
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Topic 2: Bacteria
$300 Question
Bacillary dysentery is caused by
a. Staphylococcus.
b. Shigella.
c. Salmonella.
d. Clostridium.
ANSWER
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Topic 2: Bacteria
$300 Answer
Bacillary dysentery is caused by
a. Staphylococcus.
b. Shigella.
c. Salmonella.
d. Clostridium.
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Topic 2: Bacteria
$400 Question
Chronic carriers, such as the notorious Mary
Mallon, can occur in what disease?
a. shigellosis
b. cholera
c. yersiniosis
d. typhoid fever
ANSWER
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Topic 2: Bacteria
$400 Answer
Chronic carriers, such as the notorious Mary
Mallon, can occur in what disease?
a. shigellosis
b. cholera
c. yersiniosis
d. typhoid fever
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Topic 2: Bacteria
$500 Question
Which organism produces a toxin that causes
the host cells to secrete water and electrolytes,
especially potassium?
a. Staphylococcus aureus
b. Shigella sonnei
c. Vibrio cholerae
d. Salmonella typhimurium
ANSWER
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Topic 2: Bacteria
$500 Answer
Which organism produces a toxin that causes
the host cells to secrete water and electrolytes,
especially potassium?
a. Staphylococcus aureus
b. Shigella sonnei
c. Vibrio cholerae
d. Salmonella typhimurium
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Topic 3: Viruses
$100 Question
In 20–40% of men past puberty, the mumps virus
can cause
a. orchitis.
b. liver damage.
c. fever.
d. death.
ANSWER
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Topic 3: Viruses
$100 Answer
In 20–40% of men past puberty, the mumps virus
can cause
a. orchitis.
b. liver damage.
c. fever.
d. death.
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Topic 3: Viruses
$200 Question
About what percentage of HAV infections are
subclincal?
a. 20%
b. 30%
c. 50%
d. 70%
ANSWER
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Topic 3: Viruses
$200 Answer
About what percentage of HAV infections are
subclincal?
a. 20%
b. 30%
c. 50%
d. 70%
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Topic 3: Viruses
$300 Question
Which hepatitis virus infection are health care
workers at higher risk of contracting than the
general population?
a. HAV
b. HBV
c. HEV
d. HDV
ANSWER
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Topic 3: Viruses
$300 Answer
Which hepatitis virus infection are health care
workers at higher risk of contracting than the
general population?
a. HAV
b. HBV
c. HEV
d. HDV
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Topic 3: Viruses
$400 Question
Which hepatitis virus resembles HAV and is
endemic in areas with poor sanitation?
a. HBV
b. HEV
c. HCV
d. HFV
ANSWER
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Topic 3: Viruses
$400 Answer
Which hepatitis virus resembles HAV and is
endemic in areas with poor sanitation?
a. HBV
b. HEV
c. HCV
d. HFV
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Topic 3: Viruses
$500 Question
The treatment for viral gastroenteritis, such as an
infection of norovirus, is
a. antitoxins.
b. oral rehydration.
c. antibiotics.
d. antiviral agents.
ANSWER
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Topic 3: Viruses
$500 Answer
The treatment for viral gastroenteritis, such as an
infection of norovirus, is
a. antitoxins.
b. oral rehydration.
c. antibiotics.
d. antiviral agents.
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Topic 4: Protozoa and Fungi
$100 Question
Which organism is transmitted to humans
through oocysts in contaminated animal wastes
and water?
a. Entamoeba histolytica
b. Giardia lamblia
c. Toxoplasma gondii
d. Cryptosporidium parvum
ANSWER
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© 2013 Pearson Education, Inc.
Topic 4: Protozoa and Fungi
$100 Answer
Which organism is transmitted to humans
through oocysts in contaminated animal wastes
and water?
a. Entamoeba histolytica
b. Giardia lamblia
c. Toxoplasma gondii
d. Cryptosporidium parvum
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© 2013 Pearson Education, Inc.
Topic 4: Protozoa and Fungi
$200 Question
Ergot poisoning is caused by
a. Giardia lamblia.
b. Claviceps purpurea.
c. Aspergillus flavus.
d. Entamoeba histolytica.
ANSWER
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Topic 4: Protozoa and Fungi
$200 Answer
Ergot poisoning is caused by
a.
b.
c.
d.
Giardia lamblia.
Claviceps purpurea.
Aspergillus flavus.
Entamoeba histolytica.
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Topic 4: Protozoa and Fungi
$300 Question
It is quite common to ingest aflatoxins when
one eats
a. bread.
b. meat.
c. peanuts.
d. cheese.
ANSWER
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Topic 4: Protozoa and Fungi
$300 Answer
It is quite common to ingest aflatoxins when
one eats
a. bread.
b. meat.
c. peanuts.
d. cheese.
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Topic 4: Protozoa and Fungi
$400 Question
Which organism is a flagellate protozoan that is
able to attach firmly to a human’s intestinal wall?
a. Giardia lamblia
b. Entamoeba histolytica
c. Cyclospora cayetanensis
d. Cryptosporidium hominis
ANSWER
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© 2013 Pearson Education, Inc.
Topic 4: Protozoa and Fungi
$400 Answer
Which organism is a flagellate protozoan that is
able to attach firmly to a human’s intestinal wall?
a. Giardia lamblia
b. Entamoeba histolytica
c. Cyclospora cayetanensis
d. Cryptosporidium hominis
BACK TO GAME
© 2013 Pearson Education, Inc.
Topic 4: Protozoa and Fungi
$500 Question
What organism produces cysts that contaminate
food and water and cause dysentery?
a. Cyclospora cayetanensis
b. Giardia lamblia
c. Entamoeba histolytica
d. Aspergillus flavus
ANSWER
BACK TO GAME
© 2013 Pearson Education, Inc.
Topic 4: Protozoa and Fungi
$500 Answer
What organism produces cysts that contaminate
food and water and cause dysentery?
a. Cyclospora cayetanensis
b. Giardia lamblia
c. Entamoeba histolytica
d. Aspergillus flavus
BACK TO GAME
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Topic 5: Helminthic Parasites
$100 Question
How many stages are there in the life of typical
tapeworms?
a. two
b. three
c. four
d. five
ANSWER
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Topic 5: Helminthic Parasites
$100 Answer
How many stages are there in the life of typical
tapeworms?
a. two
b. three
c. four
d. five
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Topic 5: Helminthic Parasites
$200 Question
What is the etiological agent of hydatid disease?
a. Taenia solium
b. Echinococcus granulosus
c. Enterobius vermicularis
d. Necator americanus
ANSWER
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Topic 5: Helminthic Parasites
$200 Answer
What is the etiological agent of hydatid disease?
a. Taenia solium
b. Echinococcus granulosus
c. Enterobius vermicularis
d. Necator americanus
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Topic 5: Helminthic Parasites
$300 Question
The portal of entry for the larvae of hookworms
is the
a. skin.
b. mouth.
c. blood.
d. lymph.
ANSWER
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Topic 5: Helminthic Parasites
$300 Answer
The portal of entry for the larvae of hookworms
is the
a. skin.
b. mouth.
c. blood.
d. lymph.
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Topic 5: Helminthic Parasites
$400 Question
The diagnostic test for pinworms is
a. a biopsy.
b. ELISA.
c. serology.
d. a microscopic test.
ANSWER
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Topic 5: Helminthic Parasites
$400 Answer
The diagnostic test for pinworms is
a. a biopsy.
b. ELISA.
c. serology.
d. a microscopic test.
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Topic 5: Helminthic Parasites
$500 Question
In what disease do the larvae not only cause
digestive problems but also may cause
pulmonary symptoms?
a. hookworms
b. ascariasis
c. trichinellosis
d. pinworms
ANSWER
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Topic 5: Helminthic Parasites
$500 Answer
In what disease do the larvae not only cause
digestive problems but also may cause
pulmonary symptoms?
a. hookworms
b. ascariasis
c. trichinellosis
d. pinworms
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FINAL ROUND Question
Which form of hepatitis progresses to chronic
hepatitis in up to 85% of cases?
a. hepatitis B
b. hepatitis C
c. hepatitis D
d. hepatitis E
ANSWER
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© 2013 Pearson Education, Inc.
FINAL ROUND Answer
Which form of hepatitis progresses to chronic
hepatitis in up to 85% of cases?
a. hepatitis B
b. hepatitis C
c. hepatitis D
d. hepatitis E
BACK TO GAME
© 2013 Pearson Education, Inc.