On the other hand, proteins are macromolecules made up of linear chains of amino acids. The proteins of all living things are genetically determined. Proteins account for about half the weight of body tissues and are present in all body cells.
|Definition||Vitamins are heterogeneous compounds necessary for life. They should be taken in the dose necessary to promote proper physiological function.||Proteins are macromolecules made up of linear chains of amino acids.|
|Etymology||The term vitamin comes from the English vitamin, which in turn comes from the Latin vita , which means life.||As for the term protein, it comes from the French protéine, and this in turn from the Greek proteios, which means prominent or top quality.|
|Function||They are catalysts for some biological processes such as the correct growth and development of organisms.||They fulfill various protective functions in the body such as antibodies, enzymes, transport proteins, etc.|