OpenStax Microbiology Test Bank Chapter 24: Digestive System

OpenStax Microbiology Test Bank Chapter 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 popuTlaEtiSonTsBaAndNuKsSinEgLinLsEecRt .reCpeOllMant 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 C. by reproducing in the intestines, causing enteritis D. by reproducing in the stomach, causing gastritis and ulcers Difficulty: Moderate ASM Standard: 23 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 Difficulty: Easy ASM Standard: