Question

Nitrogen is an essential constituent of

• A. Carbohydrates
• B. Fats
• C. Mineral salts
• D. Proteins

Answer 1

Answer: (D)

Proteins

Nitrogen is a naturally occurring element that is essential for growth and reproduction in both plants and animals. It is majorly found in amino acids that make up the proteins from nucleic acids by the process of transcription and translation.

Both carbohydrates and fats mainly comprise of carbon and hydrogen.

So, the correct option is 'proteins'.