phospholipids
Phospholipids - a group of organic compounds, lipids, which in addition to glycerol residues and higher fatty acids contain a phosphoric acid residue associated with a nitrogen base, eg choline. Phospholipids are an important component of cell membrane construction. Phosphorylation of lipids to phosphorylated fatty acids is also the beginning of their biological activation, followed by decarboxylation and dehydrogenation, which are further stages of the fat burning process in living organisms. They are especially abundant in: nervous tissue, liver and blood. A characteristic feature of phospholipids is that in addition to the fatty acid residues, they also contain phosphoric acid residues. The glycerophospholipids and the sphingophospholipids are distinguished by the type of alcohol that is the framework of the molecule. Phosphorus residues can be added to another glycerophospholipidic core. Phospholipids are the main lipid component of cytoplasmic membranes.