Plasma Membrane Phospholipids

Question

Plasma membrane phospholipids
A) have nonpolar fatty acid tails.
B) form a bilayer.
C) have polar phosphate heads.
D) create a selectively permeable barrier.
E) All of the choices are correct.

Accepted Answer

Plasma membrane phospholipids have nonpolar fatty acid tails that are hydrophobic, and polar phosphate heads that are hydrophilic, which allows them to form a bilayer. This bilayer structure creates a selectively permeable barrier that controls the movement of substances in and out of the cell, making all of the choices correct.