Lipids are apart of the cell membrane and they are known as phospholipids becuase they have both a polar and an nonpolar side.
The head is polar
and the body is nonpolar. This keeps the outside of the cell and the cell differentiated.
the phospholids tails (the non-polar part) are unsaturdated fattty acids.
Unsaturdated fatty acids are chains that are not straights and are slightly bent(kinks) This allows for the cell membrane layer to be fluid
