Phosphatidylcholine is a major component of biological membranes, specifically the cell membrane. As a type of phospholipid, it is essential for maintaining the structural integrity and functionality of cells. The molecule consists of a glycerol backbone, two fatty acid tails, a phosphate group, and a choline molecule. Its amphipathic nature, having both hydrophilic and hydrophobic regions, allows it to form [lipid bilayers](href=""), which are crucial for cellular compartmentalization.
