Question

Gases like oxygen and carbon dioxide move across cell membranes using______

A. endocytosis
B.ion channels
C. diffusion
D. facilitated diffusion

Answer 1

Gases, like oxygen and carbon dioxide, move across cell membranes using simple diffusion. When ions can pass through the membrane without the aid of other molecules, and since oxygen and carbon dioxide can pass through the membrane, it is known as simple diffusion.