OpenStax Microbiology Test Bank Chapter 24: Digestive System Infections
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OpenStax Microbiology
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OpenStax Microbiology
OpenStax Microbiology Test Bank Chapter 24: Digestive System Infections
* = 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
2. What type of digest...
OpenStax Microbiology Test Bank Chapter
24: Digestive System Infections
* = 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
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
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
4. The environment in the stomach is which of the following?
A. acidic*
B. alkaline
C. neutral
D. variable
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
6. Shigellosis is also known as which of the following?
A. amoebic dysentery
B. bacillary dysentery*
C. salmonellosis
D. typhoid fever
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
8. Cholera is best controlled by which of the following?
A. eradicating mosquito populations and using insect repellant
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
9. Plaque on teeth is an example of which of the following?
A. a biofilm*
B. a cavity
C. an infection
D. dental caries
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
C. by reproducing in the intestines, causing enteritis
D. by reproducing in the stomach, causing gastritis and ulcers
11. What is the scientific name of the unusual bacterium that can survive in the acidic
environment of the stomach and is associated with peptic ulcers, as well as with
increased risk of stomach cancer?
A. Escherichia coli O157:H7
B. Heliobacter pylori*
C. Salmonella typhi
D. Vibrio cholerae
12. What is the minimum safe holding temperature for cooked food?
A. 4 °C
B. 40 °C
C. 60 °C*
D. 80 °C
13. Which group contains the most dangerous E. coli strains for causing gastrointestinal illness?
A. EHEC*
B. EIEC
C. EPEC
D. ETEC
14. Hemolytic uremic syndrome is a serious condition that may lead to all but which of the
following?
A. hypersecretion of fluids*
B. kidney failure
C. postinfection irritable bowel syndrome
D. reactive arthritis
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