What is the main function of lipids in biological membranes?

What is the main function of lipids in biological membranes?

Step 1: Understand that lipids are a type of fat found in living organisms.
Step 2: Learn that phospholipids are a special kind of lipid that has a hydrophilic (water-attracting) head and two hydrophobic (water-repelling) tails.
Step 3: Know that in biological membranes, phospholipids arrange themselves in a double layer, called a bilayer.
Step 4: Recognize that this bilayer structure helps to create a barrier that separates the inside of the cell from the outside environment.
Step 5: Realize that the main function of lipids in biological membranes is to provide structural support and maintain the integrity of the cell.

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