True or false - Protein is chemically different from carbohydrates and fats because of the presence of nitrogen.

 False ,  because

carbohydrates, proteins, and fats are digested in the intestine, where they are broken down into their basic units:

*Carbohydrates into sugars

*Proteins into amino acids

*Fats into fatty acids and glycerol

answer; /// i believe that the correct answer is (c); ///when the lungs expand, they fill with air from the atmosphere;