What feature of phospholipids allows them to interact with aqueous cytosol and extracellular fluid, while still presenting a barrier to hydrophilic substances?
A) They are polar molecules.
B) They are nonpolar molecules.
C) They are lipids.
D) They are extremely rigid molecules.
E) They are amphipathic molecules.

Question

Quizplus · Accepted Answer

Phospholipids have a head that is hydrophilic (polar) and a tail that is hydrophobic (nonpolar). This makes them amphipathic, allowing them to interact with both aqueous cytosol and extracellular fluid as well as present a barrier to hydrophilic substances.

What Feature of Phospholipids Allows Them to Interact with Aqueous