What is the primary determinant of a membrane's selective permeability
A)the structures of the membrane phospholipids
B)the amount of cholesterol present
C)the number and types of membrane proteins
D)the charge of the membrane

Question

Quizplus · Accepted Answer

The number and types of membrane proteins are the primary determinant of a membrane's selective permeability. The phospholipid bilayer provides a barrier to many substances, but membrane proteins help to regulate the movement of specific substances across the membrane, based on their size, charge, and other characteristics. Cholesterol can also affect membrane fluidity, but is not the primary determinant of selective permeability. The charge of the membrane does not determine selective permeability, but can affect the movement of charged molecules.

What Is the Primary Determinant of a Membrane's Selective Permeability