Final answer:
Glycolipids are lipids attached to oligosaccharides found on the extracellular surface of a cell. They play a role in cell-cell recognition and mediate the interaction of cells with extracellular signals and the extracellular matrix.
Step-by-step explanation:
Glycolipids are lipids that are attached to oligosaccharides and are found on the extracellular surface of a cell. They play a role in cell-cell recognition and the formation of tissues. Glycolipids, along with glycoproteins, mediate the interaction of cells with extracellular molecular signals and the extracellular matrix.