Question

Which of the following is not one of the four main components of all plasma membranes?

A) Interior protein network
B) Lipid bilayer
C) Extracellular matrix
D) Transmembrane proteins
E) Cell surface markers

Answer 1

The extracellular matrix is not a component of the plasma membrane.

Step-by-step explanation:

The correct answer is C) Extracellular matrix.

The four main components of all plasma membranes are: Lipid bilayer, Transmembrane proteins, Cell surface markers, and an Interior protein network. The extracellular matrix is not a component of the plasma membrane, but rather a network of proteins and carbohydrates that surrounds cells and provides support.