A friend in your class is reading about cells that store energy in the form of tiny lipid droplets. He says, “It says here that the membranes around the droplets are just a single phospholipid layer,...

A friend in your class is reading about cells that store energy in the form of tiny lipid droplets. He says, “It says here that the membranes around the droplets are just a single phospholipid layer, instead of a double layer like everywhere else. That doesn’t make sense, does it?” What is your reply?