Answer preview

Simple diffusion refers to the process of movement of a substance through an existent membrane. The progression through the layer occurs without the help of an intermediary that may include a membrane protein. Simple diffusion requires only the force involved in the diffusion process to occur. An example of a simple distribution consists of the process of osmosis. Osmosis entails the delivery of water molecules from locations of high concentration to areas of low level through a preamble membrane. The seamless movement of water from one layer to another occurs due to the small size of molecules present in water (Rizzo, 2015). Therefore, due to the small size of water molecules, they can move from one atom to another with the use of the force from the diffusion process…

(600 words)