Respuesta :

Answer:

Alanine

Arginine

Asparagine

Aspartic Acid

Cysteine

Glutamic acid

Glutamine

Glycine

Histidine

Isoleucine

Leucine

Lysine

Methionine

Phenylalanine

Proline

Serine

Threonine

Tryptophan

Tyrosine

Valine

Selenocysteine

Pyrrolysine (not used in human protein synthesis)

Of these 20 amino acids, nine amino acids are essential: