Understanding Phospholipids and Their Properties

Lipids are a diverse group of hydrophobic organic molecules that play crucial roles in cellular structure and function. Among the various classes of lipids, phospholipids are particularly important as they make up a significant part of cell membranes. Phospholipids consist of a hydrophilic 'head' that is attracted to water and two hydrophobic 'tails' that repel water. This unique structure allows them to form bilayers in aqueous environments, which is fundamental to the integrity of cellular membranes.

Which of the following statements correctly describes a property of phospholipids and their role in cell membranes?