24: Digestive System
,* = Correct answer
Multiple Choice
1. What is the pharynx?
A. an accessory digestive organ
B. part of the gastrointestinal tract*
C. part of the mouth
D. the exit of the gastrointestinal tract
Difficulty: Easy ASM
Standard:
N/A
2. What type of digestion occurs in the mouth?
A. chemical breakdown of food only
B. physical breakdown of food only
C. chemical and physical breakdown of food*
D. neither chemical nor physical breakdown of food
Difficulty: Easy ASM
Standard:
N/A
3. What types of microbes are found in the mouth?
A. archaea only
B. bacteria only
C. archaea and bacteria*
D. neither archaea nor bacteria
Difficulty: Easy
ASM Standard: 23, 24
4. The environment in the stomach is which of the following?
A. acidic*
B. alkaline
C. neutral
D. variable
Difficulty: Easy ASM
Standard:
N/A
5. Oral thrush is caused by which pathogen?
A. Candida spp., including C. albicans*
,B. Herpes simplex virus 1
C. Prevotella intermedia
, D. Streptococcus mutans
Difficulty: Easy
ASM Standard: 23, 24
6. Shigellosis is also known as which of the following?
A. amoebic dysentery
B. bacillary dysentery*
C. salmonellosis
D. typhoid fever
Difficulty: Easy ASM
Standard: 23
7. Typhoid fever is caused by which pathogen?
A. Salmonella paratyphi only
B. Salmonella typhi only
C. Salmonella paratyphi or S. typhi*
D. Shigella dysenteriae
Difficulty: Easy ASM
Standard: 23
8. Cholera is best controlled by which of the following?
A. eradicating mosquito popuTlaEtiSonTsBaA
ndNuKsiSnE
gLinLseEcR
t .r eC
p eOllMant
B. increasing stomach acidity by avoiding the use of antacids and proton pump inhibitors
C. using good sanitation and hygiene practices to the greatest extent possible*
D. using prophylactic antibiotics for those visiting areas where cholera is endemic
Difficulty: Easy
ASM Standard: 14, 23
9. Plaque on teeth is an example of which of the following?
A. a biofilm*
B. a cavity
C. an infection
D. dental caries
Difficulty: Moderate ASM
Standard: 21, 23, 24
10. How does Staphylococcus aureus cause gastrointestinal symptoms?
A. by producing enterotoxins when growing in food*
B. by producing neurotoxins that are released into the food