Proteins are large, complex molecules that perform many critical functions in the body with most of the work done in cells and necessary for the structure, function, and regulation of the body’s tissues and organs. They are made up of hundreds or thousands of smaller units called amino acids, which are linked together in long chains of which there are 20 different types of amino acids that can be combined to form a protein. The amino acid sequence determines the unique three-dimensional structure of each protein and its specific function. Proteins can be described based on their wide range of functions in the body. Continúa leyendo NUTRICION: PROTEINAS (II) /NUTRITION: PROTEINS (II)