Human Digestive System - Advanced Concepts
Q. What is the function of the pancreas in the digestive system?
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A.
Secretes bile
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B.
Produces digestive enzymes and hormones
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C.
Stores food
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D.
Absorbs nutrients
Solution
The pancreas produces digestive enzymes and hormones, such as insulin, which regulate blood sugar levels.
Correct Answer: B — Produces digestive enzymes and hormones
Q. What is the primary site of protein digestion in the human digestive system?
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A.
Mouth
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B.
Stomach
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C.
Small intestine
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D.
Large intestine
Solution
The stomach is the primary site for protein digestion, where pepsin breaks down proteins into peptides.
Correct Answer: B — Stomach
Q. What is the role of bile in digestion?
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A.
Breaks down carbohydrates
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B.
Emulsifies fats
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C.
Digests proteins
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D.
Absorbs nutrients
Solution
Bile emulsifies fats, breaking them down into smaller droplets to enhance digestion and absorption.
Correct Answer: B — Emulsifies fats
Q. What role does the liver play in digestion?
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A.
Produces digestive enzymes
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B.
Stores bile
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C.
Absorbs nutrients
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D.
Detoxifies harmful substances
Solution
The liver detoxifies harmful substances and produces bile, which aids in fat digestion.
Correct Answer: D — Detoxifies harmful substances
Q. Which enzyme is primarily responsible for the digestion of carbohydrates in the human digestive system?
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A.
Amylase
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B.
Pepsin
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C.
Lipase
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D.
Trypsin
Solution
Amylase is the enzyme that breaks down carbohydrates into simpler sugars.
Correct Answer: A — Amylase
Q. Which hormone stimulates the secretion of gastric acid in the stomach?
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A.
Insulin
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B.
Gastrin
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C.
Secretin
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D.
Cholecystokinin
Solution
Gastrin is the hormone that stimulates the secretion of gastric acid, aiding in digestion.
Correct Answer: B — Gastrin
Q. Which part of the 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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