This diagram illustrates the fluid mosaic model of the cell membrane, highlighting the arrangement of the phospholipid bilayer, integral proteins, and carbohydrate chains.

- The hydrophobic tails (red) face inward, away from water, forming the core of the bilayer.
- The hydrophilic heads (blue) face outward, interacting with the aqueous environments inside and outside the cell.
- Proteins (pink) are embedded within or attached to the membrane, serving roles such as transport, signaling, or structural support.
- Carbohydrate chains (yellow) are attached to proteins or lipids on the extracellular side, aiding in cell recognition and communication.