Multiple choice The lipid bilayer of cells is composed of ___________________. glycerophospholipids glycerolipids sphingolipids prenol lipids sterol lipids Reveal answer Fill a bubble to check yourself A Correct answer Explanation Glycerophospholipids, usually referred to as phospholipids, are ubiquitous in nature and are key components of the lipid bilayer of cells, as well as being involved in metabolism and cell signaling.