Answer the following question given this paragraph: 

Figure 5.3 This phospholipid molecule is composed of a hydrophilic head and two hydrophobic tails. The hydrophilic head group consists of a phosphate-containing group attached to a glycerol molecule. The hydrophobic tails, each containing either a saturated or an unsaturated fatty acid, are long hydrocarbon chains.


Q: What two things are a phospholipid molecules composed of?


A:
hydrophillic head , and hydrophobic tails