The Phospholipid Molecules are Arranged With

Question

The phospholipid molecules are arranged with
A)the hydrophilic tails facing outward and the hydrophobic heads facing inward.
B)the hydrophilic tails facing inward and the hydrophobic heads facing outward.
C)the hydrophilic heads facing outward and the hydrophobic tails facing inward.
D)the hydrophilic heads facing inward and the hydrophobic tails facing outward.

Accepted Answer

Phospholipid molecules in a bilayer are arranged with their hydrophilic (water-attracting) heads facing outward towards the water, and their hydrophobic (water-repelling) tails facing inward, away from the water. This arrangement is crucial for the structure of cell membranes.