Question

Why cell membrane is bilayer?

Answer 1

The lipid bilayer is a universal component of all cell membranes. The structure is called a "lipid bilayer" because it is composed of two layers of fat cells organized in two sheets.

A cell membrane is a bilayer because it is made up of 2 layers of lipids.The heads of the lipids are faced towards the opposites sides (the inside and outside of a cell) while the tail (the 2 fatty acids) are inside the layer facing each other.