Passive Transport - an overview

Passive Transport: Diffusion passive transport Passive transport is movement of a substance across a membrane from an area of high concentration to an area of low concentration There is no energy or ATP active transport Passive transport, also known as passive diffusion, is a process by which an ion or molecule passes through a cell wall via a concentration

passive transport Some membrane proteins help communicate with other cells B Other proteins do active transport Page 57 PASSIVE TRANSPORT