Wednesday, October 5, 2011

DIFUSSION LAB!!!







Sup it's Yasmin guys and this is my first post... anyways today class was pretty chilll even though I had know idea what I was doing. The lab we did today was THE DIFUSSION LAB. The point of the diffusion lab was to provide background for the understanding of diffusion in living cells. We put water in a beaker, then added iodine. Second, we filled the cellophane dialysis with soluble starch solution. Then added 20 drops of glucose solution to the cellophane tube. After that we placed the tube in the beaker. While we were taking notes (funnn!) we left them there for them to do their magic! Finally, all the groups went back to see the results. We placed a tes-tape in the beaker to see if glucose was present, it was because the tes- tape turned green . Furthermore, the iodine difussed because it was going through osmosis. Also, the starch turned purple because idodine got into the sausage, this happened because the glucose difussed through the sausages membrane. In conclusion, we now know how difussion works in a cell!










Also, I went to give credit to Eleni.P! she helped me through this post. Without her I coudn't have done it. Thank you.





No comments:

Post a Comment