Respuesta :
Answer:
A
Explanation:
Protein is one of the essential nutrients, or macronutrients, in the human diet, but not all the protein we eat converts into proteins in our body. When people eat foods that contain amino acids, these amino acids make it possible for the body to create, or synthesize, protein
That and the body cannot store these on their own, functioning- storing energy and insulate and protect our vital organisms