Question

what are macronutrients and micronutrients

Answer 1

Micronutrients, as opposed to macronutrients (protein,carbohydrates and fat), are comprised of vitamins and minerals which are required in small quantities to ensure normal metabolism, growth and physical well-being.

Macronutrients are the structural and energy-giving caloric components of our foods that most of us are familiar with. They include carbohydrates, fats and proteins.
Micronutrients are the vitamins, minerals, trace elements, phytochemicals, and antioxidants that are essential for good health.

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Answer 2

Micronutrients are required by plants in far smaller quantities than any macronutrient. Micronutrients required by plants include zinc (Zn), iron (Fe), manganese (Mn), copper (Cu), boron (B), molybdenum (Mo), and chlorine (Cl). Relative to the macronutrients, micronutrients are required in trace quantities.