what is fluid mosaic model of cell membrane

The fluid mosaic model says that the cell membrane is a flexible, dynamic “sea” of lipids with proteins and other molecules floating in it like a mosaic.

Simple definition (exam‑style)

• The cell (plasma) membrane is made of a phospholipid bilayer with proteins embedded in it.
• Lipids and many proteins can move sideways within the layer, so the membrane is fluid.
• Because many different components (proteins, lipids, carbohydrates, cholesterol) are scattered in the bilayer, it looks like a mosaic.

In one line: The fluid mosaic model describes the cell membrane as a fluid phospholipid bilayer in which various proteins and other molecules are embedded and can move laterally. If you want, I can next expand this into a full 150–200 word “Quick Scoop” note with headings and bullet points for your post.