Class 09/06

Today in class we took a look at how diffusion works within a cell. We used gel cells to see how different substance travel through cells. My group used three cups of Potassium Iodine and three different sized cells. We placed the different sized cells into the cups of Potassium Iodine and let them sit for a while. When we pulled the cells out we cut them and examined how deep the Potassium Iodine traveled through. We measured the length of how far the KI was able to travel through the cells. The larger the cells were, the shorter the KI was able to diffuse through the cell membrane.