What is Diffusion in Biology?

simple diffusion  Simple diffusion can only move material in the direction of a concentration gradient; facilitated diffusion moves materials with and against a concentration Simple diffusion is the process by which solutes move through a concentration gradient in a solution across a semipermeable membrane, without

Passive Diffusion, Simple Diffusion, Facilitated Diffusion! What is the Facilitated diffusion is directed by the specificity between solute and carrier molecules Additional forces, Besides the concentration gradient

Diffusion Across the Plasma Membrane The simplest mechanism by which molecules can cross the plasma membrane is passive diffusion During  Oxygen and carbon dioxide can be transported through simple diffusion as they are small which means they can pass through the phospholipid bilayer They are