scilearner Posted January 23, 2014 Share Posted January 23, 2014 Hello everyone, Lets say there is a membrane, which has a channel for the solute(eg sodium) and another channel for water Now if I have a hypertonic (more sodium) solution in side A, and hypotonic (less sodium) solution in side B. Which way would water go? * I'm very confused here diffusion and osmosis both occuring. Does water follow sodium or sodium follows water? Thanks Link to comment Share on other sites More sharing options...
studiot Posted January 23, 2014 Share Posted January 23, 2014 If the membrane is permeable to all species it might as well not be there and osmosis does not occur. Osmosis occurs when there is a semipermeable membrane that is permeable only to some of the species involved. Link to comment Share on other sites More sharing options...
chadn737 Posted January 23, 2014 Share Posted January 23, 2014 Movement will occur in both directions. Link to comment Share on other sites More sharing options...
CharonY Posted January 23, 2014 Share Posted January 23, 2014 The only thing one would need to take into account is the rate of permeability and how much it differs from free diffusion. Link to comment Share on other sites More sharing options...
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