Day 78: Modeling Movement across Cell Membranes

IMG_3467

IS I students set up their cell membrane models. Half put iodine solution in the baggie and placed it in a starch solution. The other half put the starch solution in the baggie and surrounded it with the iodine solution. The lab calls for a simple qualitative look at the movement of molecules across a membrane. We decided to mass the bag and its contents to get some quantitative data. We will check back in a day and then two or three.

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