Which Statement is True About the Plasma Membrane

Question

Which statement is true about the plasma membrane?
A)The proteins make up the matrix of the membrane.
B)The model can be likened to a sandwich where phospholipids are like the bread and proteins are like the filling.
C)The fluid nature of the membrane is regulated by flip-flopping of the phospholipids from one side of the membrane to the other.
D)Proteins and phospholipids can move sideways within the plane of the membrane.

Accepted Answer

The fluid mosaic model describes the plasma membrane as a fluid combination of phospholipids and proteins, where both can move laterally within the layer, allowing for flexibility and functionality.