is diffusion passive or active transport
Diffusion, osmosis and facilitated diffusion are examples of passive transport. Particles which are soluble easily are transported via passive transport. It has an importance of maintaining equilibrium in the cell, waste is excreted out of the cell by means of passive transport, like carbon-dioxide or water.
Facilitated diffusion. Facilitated diffusion is the process of spontaneous passive transport of molecules or ions across a cell's membrane via specific transmembrane integral proteins.