What is chemical nature of membrane components that enable cells to move substances that cannot cross by the process of simple diffusion in and out of the cell?

Question

Quizplus · Accepted Answer

Proteins in the membrane act as channels or transporters to facilitate the movement of substances that cannot cross by simple diffusion. Phospholipids, carbohydrates, and glycolipids do not have the same ability to transport substances across the membrane.

What Is Chemical Nature of Membrane Components That Enable Cells