Osmosis differs from the process of diffusion in that osmosis concerns only the movement of

Osmosis differs from the process of diffusion in that osmosis concerns only the movement of water and is always the movement in the membrane. Diffusion does not need a membrane to make molecules and Diffusion is the movement of molecules.

You should never redesign your experiment. try and see what in your experiment you made a mistake on or try and test your experimemt with somebody else. see if they get the right results.