<prompt> Which of the following amino acids is purely ketogenic-PhenylalanineLeucineProlineTyrosine  <response>: Ans. is b i.e., Leucine 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 29re P-282, lysine is both ketogenic and glucogenic. But all other textbooks have mentioned it as ketogenic. 