Simple diffusion is when any material capable of moving will move from high to low concentration. This is similar to facilitated diffusion because they both move proteins from high concentration to low concentrations. Where as osmosis is from high concentration to low concentration with h2o. Facilitated diffusion is different because it uses a channel protein to allow big substances to go through the membrane. Osmosis is the movement of water molecules from high to low concentration and differs because it deals only with water. Osmosis is a type of diffusion since they are both the same besides the water factor. Facilitated diffusion is similar to osmosis because they do not use
