Proteins are like carbohydrates and fats (lipids) because they contain carbon, hydrogen and oxygen. On the other hand, proteins also contain _nitrogen__________ while carbohydrates and fats do not.
Explanation:
Proteins are formed by units: amino acids. These are organic molecules that contain carboxyl (COOH) and amino (NH2) groups. These groups bind to the carbon called alpha (α), which also binds to a side chain (R chain) and a hydrogen atom (H). There are 20 types of amino acids.
