- 1. What enzyme starts the digestion of carbohydrates?
A) Pepsin B) Amylase C) Trypsin D) Lipase
- 2. Where does the majority of digestion occur?
A) Small intestine B) Esophagus C) Mouth D) Stomach
- 3. Which organ produces bile?
A) Gallbladder B) Pancreas C) Stomach D) Liver
- 4. What layer of the digestive tract is responsible for absorption?
A) Submucosa B) Mucosa C) Muscularis D) Serosa
- 5. What is the last section of the large intestine called?
A) Colon B) Ileum C) Rectum D) Cecum
- 6. Which structure prevents food from entering the windpipe?
A) Epiglottis B) Uvula C) Pharynx D) Larynx
- 7. What is the tube called that connects the mouth to the stomach?
A) Trachea B) Pharynx C) Esophagus D) Duodenum
- 8. How long is the average human small intestine?
A) About 15 feet B) About 5 feet C) About 20 feet D) About 30 feet
- 9. What is the first part of the small intestine?
A) Duodenum B) Cecum C) Jejunum D) Ileum
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