True about facilitated diffusion are all except:
Ganong 22 –31
When carrier proteins move substances in the direction of their chemical or electrical gradient, no energy input is required and the process is called facilitated diffusion.
Diffusion- process in which solute particles move from a more concentrated environment to a less concentrated one in order to bring a uniform concentration throughout.
Occur in direction of concentration gradient.
Does not require energy.
Occur in direction opposite to electrical gradient.
Facilitated by charge of molecule.