Cell membranes effectively serve as barriers between cells and the surrounding spaces because they are made of _____ phospholipids.
A)amphipathic
B)hydrophilic
C)hydrophobic
D)lipogenic

Question

Quizplus · Accepted Answer

Cell membranes are composed of amphipathic phospholipids, which have both hydrophobic and hydrophilic regions. The hydrophobic tails of phospholipids face inward and interact with each other, while the hydrophilic heads face outward and interact with water. This arrangement creates a selectively permeable barrier that allows for the passage of certain molecules while keeping others out.

Cell Membranes Effectively Serve as Barriers Between Cells and the Surrounding