In our study of cells, we are spending a lot of our time understanding the processes of diffusion and osmosis. Materials move in and out of cells through a semi-permeable membrane. This is a passive transport function that responds to differences in concentrations within and without the cell.
One way that we have explored these processes is with a lab that used apple slices. We placed the slices into two different solutions: one a highly concentrated salt solution, and the other a plain water bath.
We observed the changes in the apple slices over the course of about 20 minutes, and then discussed what the changes that we observed could tell us about diffusion and osmosis.
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