Distinguishing between macro- and micro-nutrient mineral elements is fundamental in nutrition and biology. Macronutrients are required in larger amounts for structural or major metabolic roles.
Living organisms require at least 27 elements of which 15 are metals. Among these, those required in major quantities include
Asked in UPPCS Prelims 1996 · Topic: Vitamins and Nutrition (Minerals: Major Minerals (Calcium, Phosphorus, Sodium, Potassium, Magnesium, Sulphur) - Sources, Functions, Deficiency)
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Answer: C. Potassium, Sodium, Magnesium & Calcium
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