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