Correct Answer - Option 4 : Nitrogen
Explanation:
- Protein is made up of Amino acids which contain Nitrogen, Carbon, and Hydrogen.
- Protein helps us in biochemical reactions taking place in our body.
- It is important for cell development and its repairing.
- Sources of Protein include fish, egg, soybean, leguminous vegetables.
- Our body gets nitrogen required for it from protein.
- So, Nitrogen is the correct option.
Functions of Protein
- Body Building
- Growth and development of Body
- Source of energy in presence of Fat and carbohydrates.
- Helpful in cell division and repair.
Carbohydrates and Fat are made up of Carbon, Hydrogen, and Oxygen.