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Correct answer: Glucose promotes sodium and water absorption in the intestine. ORS works through sodium–glucose cotransport in the small intestine, allowing sodium and water to be absorbed even during many diarrhoeal illnesses. The correct balance of glucose and electrolytes is crucial; overly concentrated sugary drinks can worsen osmotic diarrhoea. ORS does not paralyse the intestine, normally contains no antibiotic and does not replace blood cells.
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Common questions and clear answers for this topic.
The body needs carbohydrates, proteins, fats, vitamins, minerals and water. Dietary fibre also supports digestive and metabolic health. A balanced diet supplies these components in amounts suited to a person’s age, activity and physiological needs.
Competitive exams commonly test nutrient functions and sources, energy values, vitamin and mineral deficiencies, fat-soluble and water-soluble vitamins, balanced diets, and protein-energy malnutrition such as kwashiorkor and marasmus.
Learn each nutrient as a four-part link: its major dietary sources, principal function, characteristic deficiency and important excess effect. This method makes similar options easier to distinguish.
