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Next Subject		 dialysis tubinggmmcdill2008-10-11Click here to register.
I understand for the most part how dialysis tubing works, but a biology teacher asked me, a chemistry teacher, about this question and I wasn't sur ewhat the answer was. A piece of tubing full of a starch-iodine mixture was placed into an empty beaker at the lab, and no water leaked back out of the tubing into the beaker. I wasn't sure if this was due to the internal pressure of the bag affecting the direction of fluid flow or if it had something to do with molecular polarityu or something else entirely. Can you enlighten me? Thanks.

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