Human Digestive System - Applications
Q. What is the main purpose of the villi in the small intestine?
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A.
Increase surface area for absorption
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B.
Secrete digestive enzymes
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C.
Transport waste
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D.
Produce bile
Solution
Villi increase the surface area of the small intestine, enhancing nutrient absorption.
Correct Answer: A — Increase surface area for absorption
Q. What is the primary role of the stomach in digestion?
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A.
Absorption of nutrients
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B.
Mechanical and chemical digestion
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C.
Storage of bile
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D.
Production of insulin
Solution
The stomach plays a key role in both mechanical and chemical digestion of food.
Correct Answer: B — Mechanical and chemical digestion
Q. Which of the following is NOT a function of the digestive system?
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A.
Digestion of food
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B.
Absorption of nutrients
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C.
Regulation of body temperature
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D.
Elimination of waste
Solution
Regulation of body temperature is not a function of the digestive system.
Correct Answer: C — Regulation of body temperature
Q. Which part of the human digestive system is primarily involved in water absorption?
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A.
Stomach
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B.
Small intestine
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C.
Large intestine
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D.
Esophagus
Solution
The large intestine is primarily responsible for the absorption of water from indigestible food matter.
Correct Answer: C — Large intestine
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