The interior of a phospholipid bilayer is
A) hydrophobic.
B) hydrophilic.
C) proteinaceous.
D) hydrogenated.

Question

Quizplus · Accepted Answer

The interior of a phospholipid bilayer is hydrophobic, meaning it repels water. This is because the fatty acid tails of the phospholipids are nonpolar and do not bond well with water molecules. The hydrophilic heads of the phospholipids face outwards towards the surrounding water environment, while the hydrophobic tails face inwards towards each other. This creates a stable barrier that separates the inside and outside of the cell.

The Interior of a Phospholipid Bilayer Is