Biology

In the fluid mosaic model of the cell membrane, phospholipids are arranged in a bilayer. Here's how they orient themselves:

 

1.Hydrophilic heads (the "water-attracting" parts) face outward toward the aqueous environment both outside the cell and in the cytoplasm inside the cell.

2.Hydrophobic tails (the "water-repelling" parts) face inward, away from the water, toward each other, forming the interior of the bilayer.

 

So, the structure would look like this:

The oute...