The Only Exclusively Ketogenic Amino Acids Are

Question

The only exclusively ketogenic amino acids are
A) Leucine and lysine
B) Leucine and isoleucine
C) Tryptophan and phenylalanine
D) Serine and threonine
E) Aspartic and glutamic acids

Accepted Answer

Leucine and lysine are the only amino acids that are exclusively ketogenic, meaning they are only metabolized into ketone bodies and cannot be converted into glucose through gluconeogenesis.