In the context of histology, glycerolipids are integral to the structure and function of cellular membranes. They contribute to: - Membrane Structure: Phospholipids, a type of glycerolipid, are essential components of the cell membrane, providing structural integrity and fluidity. - Energy Storage: TAGs stored in adipocytes serve as a major energy reserve. - Signal Transduction: Certain glycerolipids act as precursors for signaling molecules that regulate various cellular processes, including inflammation and apoptosis.