Qhov {- keto acids produced los ntawm cov amino acids matabolism tuaj yeem ua ke rau hauv CO2 thiab oxo in CO2 thiab Oxo} Nyob rau hauv CO2 thiab oxo in CO2 thiab oxo} Cov enzymes yog cov protein (muaj cov amino acid molecules), xws li amylase, pepsin, carbonic anhydrase, thiab transaminases. Nitrogen -} muaj cov tshuaj hormones yog tsim cov tshuaj muaj protein lossis lawv cov tshuaj loj, epinephrine, tshuaj insulin, thiab cov tshuaj insulet. Qee cov vitamins tau hloov pauv los ntawm cov amino acids lossis khi rau cov protein. Cov enzymes, cov tshuaj hormones, thiab cov vitamins ua tus qauv tseem ceeb hauv kev tswj cov txheej txheem ntawm cov teeb meem metabolic.