A bilayer of self-arranging , tail-to-tail phospholipid molecules makes up the cell membrane (Option c).
The phospholipids make up the majority of the lipid bilayer.
Polar phosphate heads and hydrophobic non-polar fatty acid tails make up these phospholipids.
The arrangement of phospholipids in water is that their hydrophilic phosphate heads face the outward aqueous side and their hydrophobic fatty acid tails face each other inside the lipid bilayer.
In summary, phospholipid molecules that self-arrange tail-to-tail form a bilayer that makes up the cell membrane (Option c).
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