Phospholipids and Membrane Structure

The cell membrane is a vital component of all living cells, serving as a barrier that separates the interior of the cell from the external environment. This membrane is primarily composed of lipids, proteins, and carbohydrates. Among these lipids, phospholipids play a crucial role due to their amphipathic nature, meaning they contain both hydrophobic (water-repelling) and hydrophilic (water-attracting) regions. This amphipathic property allows phospholipids to form a bilayer, which is fundamental to the architecture of the cell membrane.

Which of the following statements accurately describes the structural feature of phospholipids that contributes to the formation of the lipid bilayer in cell membranes?