Understanding Phospholipid Behavior in Membranes

In biological membranes, lipids play a crucial role in maintaining structural integrity and functionality. Phospholipids, in particular, form the fundamental barrier that separates the interior of the cell from the external environment. The properties of phospholipids, such as their hydrophilic heads and hydrophobic tails, are essential for the formation of lipid bilayers.

One of the distinguishing features of phospholipids is their ability to create a semi-permeable membrane, allowing selective transfer of materials into and out of the cell. This is vital for homeostasis and cellular communication. Understanding the role of different types of lipids and their interactions within membranes is crucial for comprehending how cells function.

Considering this information, which of the following statements regarding phospholipids is TRUE?