Lipids are hydrophobic or amphipathic small molecules which include fats, waxes, sterols, fat-soluble vitamins (such as vitamins A, D, E and K), monoglycerides, diglycerides and phospholipids. The important roles of lipids in biological physiology are evident not only in energy storage and structural components of cellular membranes, but also in signal transduction, membrane trafficking and morphogenesis. lipid content analysis is the synthesis and degradation of lipids in cells, consisting of the breakdown or storage of fats for energy and the synthesis of structural and functional lipids like those involved in the construction of cell membranes. https://metabolomics.creat...