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