Phospholipids spontaneously form bilayer structures, but oils form small droplets. Why do oils not form bilayers?
A) Oils are not as hydrophobic as phospholipids.
B) The fatty acids in oils preclude bilayer formation.
C) Oils are energy reserves of cells.
D) Oils do not have the polar head group that phospholipids have.
E) Oils and water do not mix.

Question

Quizplus · Accepted Answer

Bilayers require a polar head group and nonpolar tail regions. Oils do not have a polar head group like phospholipids, which is necessary for bilayer formation. Therefore, oils do not form bilayers.

Phospholipids Spontaneously Form Bilayer Structures, but Oils Form Small Droplets