Cell membranes are described as a fluid mosaic that maintains stability while still allowing movement. What component maintains most of the flexibility of the membrane?
A)Phospholipid bilayer
B)Integral proteins
C)Polysaccharides
D)Carbohydrates

Question

Quizplus · Accepted Answer

The phospholipid bilayer is the main component of the cell membrane and is responsible for maintaining the fluidity and flexibility of the membrane. The phospholipids have a hydrophilic head and a hydrophobic tail which allow the membrane to interact with the aqueous environment inside and outside the cell. In addition, the phospholipids can move laterally and exchange places with other phospholipids, which adds to the fluidity of the membrane. Although integral proteins and carbohydrates also play important roles in the structure and function of the cell membrane, they do not contribute as much to the flexibility of the membrane as the phospholipid bilayer.

Cell Membranes Are Described as a Fluid Mosaic That Maintains