Question

Which best describes the role of nitrogen in the human body?
O A. Main ingredient of protein
B. Transfers energy in cells
C. Makes energy in cells
O D. Makes up 1.5% of the human body

Answer 1

Answer:

O A. Main ingredient of protein

Explanation:

Nitrogen is used by our body to make amino acids  which in turn make proteins.

Answer 2

O A. Main ingredient of protein