Nitrogen metabolism Category page Create Classic editor Talk0 This page needs content. You can help by adding a sentence or a photo. Add to this page!orSearch for "Nitrogen metabolism" “Assessment| Biopsychology| Comparative| Cognitive| Developmental| Language| Individual... Nitric oxide Amino acids Amino acid “ An essential amino acid for an organism is an amino acid that cannot be synthesized by the... Essential amino acid Nitrous oxide “ Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual... Glucogenic amino acid List of standard amino acids “ Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual... Urea cycle Pages in category "Nitrogen metabolism" The following 9 pages are in this category, out of 9 total. A Amino acid Amino acidsE Essential amino acid G Glucogenic amino acidL List of standard amino acidsN Nitric oxide N cont. Nitrous oxideU Urea cycle Uric acid Retrieved from "http://psychology.wikia.com/wiki/Category:Nitrogen_metabolism"