Facilitated diffusion is to transport small polar or small charged particles down concentration gradient, and this of course requires channel proteins. Osmosis is to transport water molecules down water potential gradient. Exocytosis is to transport big molecules like proteins out side the cell.Click to see full answer. In this way, how are diffusion osmosis and facilitated diffusion similar?Facilitated diffusion is the movement of a molecule from an area of high concentration to an area of lower concentration with the help of a protein channel or carrier. Osmosis is the diffusion of water through a semi-permeable membrane.Additionally, what are the similarities and differences between diffusion active transport and osmosis? Diffusion is the movement of particles from a high to lower concentration. Osmosis is the diffusion of water across a membrane. Active transport moves particles from low to higher concentration. Similarly one may ask, what do diffusion and osmosis have in common? Diffusion sees molecules in an area of high concentration move to areas with a lower concentration, while osmosis refers to the process by which water, or other solvents, moves through a semipermeable membrane, leaving other bits of matter in its wake.Is osmosis a type of diffusion or facilitated diffusion?Facilitated diffusion is diffusion using carrier or channel proteins in the cell membrane that assist in the movement of molecules across a concentration gradient. The third type of movement is known as osmosis, or the movement of water to equalize solute concentration.
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