Public Health
ORAL rehydration solution (ORS) combats dehydration by providing:
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About This Question
- Subject
- biology
- Chapter
- biology and human welfare
- Topic
- public health
- Difficulty
- Medium
- Year
- 2025
Solution
Correct Answer:
Balanced salts and glucose
- Dehydration: Usually caused by diarrhea or vomiting, leading to loss of water and essential electrolytes.
- Sodium-Glucose Co-transport: The absorption of Water and Sodium (Na+) in the small intestine is significantly enhanced in the presence of Glucose.
- ORS Composition: It contains a precise mixture of:
- Salts: NaCl (Sodium chloride), KCl (Potassium chloride), and Trisodium citrate.
- Glucose: Provides energy and facilitates the transport of salts.
- Function: This combination helps the body reabsorb fluids quickly and restores electrolyte balance. Pure water or pure glucose are not as effective for rapid rehydration in clinical diarrhea cases.
This medium difficulty biology question is from the chapter biology and human welfare, covering the topic of public health. It appeared in the 2025 exam.
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