nelja tsüklilist steroidset struktuuri sisaldav lipiid, mille üks tsükkel on seotud hüdroksüülrühmaga
A sterol, is biosynthesized by all animal cells, because it is an essential structural component of all animal cell membranes; essential to maintain both membrane structural integrity and fluidity and a base for the synthesis of vitamin D and steroid hormones.
Hea teada
Teda leidub palju eukarüootide membraanides ning temast sünteesitakse steroidhormoone, sapihappeid ja vitamiin D.