Substrate for gluconeogenesis include?: (A) Glycerol, (B) Leucine, (C) Fatty acids, (D) Acetyl CoA
Answer is A. Only 5 amino acids are both glucogenic and ketogenic. Mnemonic - TTT I P Both glucogenic and ketogenic amino acids: Tryptophan Tyrosine Threonine, Isoleucine, Phenylalanine Note: there is a controversy regarding Lysine, some book says it is purely ketogenic some say it is both Ketogenic and glucogenic serine is only glucogenic amino acid.