Flashcard 14 - Biology Flashcard Set for the HESI Exam

phospholipid bilayer

The cell membrane is a conglomerate of different materials that give it its unique properties. The main structure, however, is a double layer (or bilayer) of phospholipids. They have hydrophilic heads that point outward toward the intercellular and extracellular environments and hydrophobic tails that point inward toward each other.