Question

The polar head of a phospholipid is made of _____ molecules.

A. 

protein

B.  phosphate

C.  fatty acid

D.  carbohydrate

Answer 1

b. phosphate. The polar head of a phospholipid is negatively charged and is made up of phosphate molecules. This polar head region attracts water (hydrophilic) and is positioned outward to interact with water.