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