Anatomy & Physiology · Chapter 3

The Cell Membrane

Every cell is wrapped in a fluid mosaic — a jiggling double layer of phospholipids studded with proteins, cholesterol, and sugar tags. It decides what gets in and out. Tap each piece to meet it.

The phospholipid bilayer

The fluid mosaica jiggling, mixed-up sheet

Meet the pieces

📷 Reference image
A real labeled figure to compare with the interactive above.
The Cell Membrane reference figure
The Cell Membrane — OpenStax, CC BY 4.0 (via Wikimedia Commons)