Both have ester bonds. Ester bonds are formed between glycerol and fatty acids Both contain glycerolFatty acids can be either saturated or unsaturated in both structures. Saturated fatty acids do not have any double double carbon bonds unlike unsaturated fatty acids. Most fatty acids in phospholipids are unsaturated because the double bonds create kinks which allows the phospholipid bilayer to be more fluid. Insoluble in waterMade up of element C,H,O but phospholipids also have PTriglyceride has 3 fatty acids whereas phospholipids have 2 fatty acids and phosphate group Phospholipids form monolayers in water but triglycerides do notTriglycerides are hydrophobic and phospholipids have hydrophobic and hydrophilic properties