difference between simple diffusion and active transport
Simple diffusion, on the other hand, is the passage of a molecule or ion in a membrane without the help or aid of another intermediary such as proteins. What drives the molecules and ions from a certain point to the other side of the membrane is through diffusionâs force.
Active and passive transport are biological processes that move oxygen, water and nutrients into cells and remove waste products. Active transport requires chemical energy because it is the movement of biochemicals from areas of lower concentration to areas of higher concentration. On the other hand, passive trasport moves biochemicals from areas of high concentration to areas of low concentration; so it does not require energy.