Make a list of macronutrients and mention their major functions?

For animals, the macronutrients are those foods that are important in energy production -- carbohydrates, proteins and fats.For plants the macronutrients are divided into 3 classes. Under structural components are carbon, oxygen and hydrogen -- they are important in providing energy for the plant. The primary minerals are important in the plant structure and are potassium, phosphorus and nitrogen. The secondary minerals are calcium, sulfur and magnesium. These aide in the life processes of the plant.