Essential amino acids are all except:: (A) Leucine, (B) Lysine, (C) Methionine, (D) Proline
Answer is D. 10 amino acid are essential - T - Threonine V -VALINE P- Phenylalanine A- Arginine T- Tryptophan M- Methionine I -Isoleucine L -Leucine L - Lysine 2 amino acid are semi essential -Arginine and histidine can be synthesized by adults and not by growing children