Lipids form the membranes surrounding the cell and various internal compartments within an organism. Which property of lipids makes them a good barrier?

Hydrophobic Properties

Explanation:

Lipids and water do not mix. The contents of cells in the larger proportion is the cytoplasm, this is made up mostly of water. The lipids serve as a barrier; the contents that are distributed in a watery medium will not be able to mix. This is due to the hydro-phobic or water "hating" capacity of lipids.