Question

write difference between diffusion and osmosis

Answer 1

osmosis is the diffusion of water across a membrane against the gradient. this means that water molecules diffuse across the membrane from a low ionic strenght to high ionic strenght containing solutions.

diffusion is where molecules travel across membranes along the gradient. it means that molecules will travel across a membrane from a solution of higher concentration to a solution of lower concentration.

diffusion also includes diffusion of water ie osmosis. therefore osmosis is a part of diffusion. whenever molecules diffuse across a membrane, water also diffuses across the membrane in the opposite direction that the molecules diffuse across.

Answer 2

Diffusion is the movement of molecule from a place of high concentration to a place of low concentration through a semi-permeable membrane. 

Osmosis is the movement of molecules from a place of high water concentration to a place of low water concentration through a semi-permeable membrane. 


Thus the only difference is that Osmosis is to do with water.