Answer :
Final answer:
Phospholipid molecules have a hydrophilic head and hydrophobic tail, essential for the formation of the lipid bilayer in cell membranes.
Explanation:
Phospholipid Head: The head of a phospholipid is hydrophilic and contains the negatively charged phosphate group and glycerol. It is charged/polar and found on the exteriors of the bilayer.
Phospholipid Tail: The tail of a phospholipid is hydrophobic and consists of 2 long fatty acid chains. It is located in the interior of the bilayer and is non-polar.
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