Question

think fast! which biomolecule contains c, h, o, n and is made up of amino acids?
carbohydrates
proteins
lipids
nucleic acids

Explanation:

Carbohydrates are made of C, H, O. Lipids mainly consist of C, H, O (some have P). Nucleic acids have C, H, O, N, P. Proteins are made of amino acids (amino acids have C, H, O, N) and thus proteins contain C, H, O, N.

Answer:

proteins