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.

Question

Quizplus · Accepted Answer

The phospholipid molecules consist of hydrophilic head and hydrophobic tail. The hydrophilic heads of the phospholipids face outwards towards the aqueous environment while the hydrophobic tails face inwards, away from the aqueous environment. This arrangement forms a phospholipid bilayer, which is the basis of cell membranes. Therefore, the correct choice is C which states that the hydrophilic heads are facing outward and the hydrophobic tails are facing inward.

The Phospholipid Molecules Are Arranged with