Diffusion occurs when small molecules move freely from high concentration to low concentration in order to equilibrate the membrane. It is considered a passive transport process because it does not require energy and is propelled by the concentration gradient created by each side of the membrane. [1]
 | This is a user sandbox of Hancock29. You can use it for testing or practicing edits. This is not the sandbox where you should draft your assigned article for a dashboard.wikiedu.org course. To find the right sandbox for your assignment, visit your Dashboard course page and follow the Sandbox Draft link for your assigned article in the My Articles section. |
- ^ Cooper, Geoffrey M. (2000). "Transport of Small Molecules".
{{cite journal}}: Cite journal requires|journal=(help)