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