<prompt> Purely glucogenic amino acid -IsoleucineTyrosineLysineProline  <response>: Ans. is d i.e., Proline GlucogenicKetogenicBoth glucogenic ketogenico Alanineo Arginineo Aspargineo Aspartic acido Cysteineo Glutamineo Glutamic acido Glycineo Histidineo Methionineo Prolineo Serineo Threonineo Valineo Leucineo Lysineo Isoleucineo Phenylalaineo Tyrosino TryptophanNote : According to Harper 29th e P-282, lysine is both ketogenic and glucogenic. But all other textbooks have mentioned it as ketogenic. 