Not glucogenic is

CLASSIFICATION OF AMINO ACIDS BASED ON METABOLISM - A. Purely Ketogenic - Leucine is purely ketogenic because it is conveed to ketone bodies. B. Ketogenic and Glucogenic - Lysine, Isoleucine, Phenylalanine, Tyrosine and Tryptophan are paially ketogenic and paially glucogenic. How ever in humans lysine is predominantly ketogenic. During metabolism, pa of the carbon skeleton of these amino acids will enter the ketogenic pathway and the other pa to glucogenic pathway. C. Purely Glucogenic - All the remaining 14 amino acids are purely glucogenic as they enter only into the glucogenic pathway. the glucogenic amino acids are: Alanine Arginine Asparagine Aspaic acid Cysteine Glutamic acid Glutamine Glycine Histidine Methionine Proline Serine Valine. PNEMONIC TO REMEMBER ESSENTIAL AMINO ACIDS -"Any Help In Learning These Little Molecules Proves Truely Valuable" This stands for Arginine, Histidine, Isoleucine, Leucine, Threonine, Lysine, Methionine, Phenylalanine, Tryptophan and Valine in that order. Arginine and Histidine are semi-essential amino acids; while others are essential. REF:DM VASUDEVAN TEXTBOOK OF BIOCHEMISTRY,EIGHTH EDITION,PG.NO.,26,27.