Question
(3)
Which of the following best explains why a cell's plasma membrane is composed of two layers of
phospholipids rather than just a single layer?
Having two oppositely oriented layers of phospholipids allows only the hydrophilic
heads to interact with water inside and outside of the cell.
Having two oppositely oriented layers of phospholipids allows the hydrophilic
heads to repel water both inside and outside of the cells.
Having two identically oriented layers of phospholipids gives cells more protection
from the exterior environment than just a single layer would.
Having two identically oriented layers of phospholipids allows for the production of
vacuoles while still maintaining a protective barrier
Answer
Having two oppositely oriented layers of phospholipids allows the hydrophilic heads to repel water both inside and outside of the cells.