Diarrhoea occurs when
Correct answer: C. the intestinal contents move too quickly for adequate water absorption
- A. the large intestine absorbs too much water
- B. digestion proceeds too rapidly in the stomach
- C. the intestinal contents move too quickly for adequate water absorption
- D. the villi absorb too much glucose
Explanation
When contents rush through, the large intestine cannot reclaim enough water and the faeces stay liquid, risking dehydration. Too much absorption has the opposite effect, causing constipation.
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About Human Digestive System
The human digestive system breaks food into absorbable molecules through mechanical processing, enzyme action and chemical conditions along the alimentary canal. Questions cover the mouth, stomach, small and large intestines, liver, pancreas and associated secretions, including the digestion and absorption of carbohydrates, proteins, lipids, vitamins, minerals and water.
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