For all experiments involving dialysis tubing bags, you were instructed to pat-dry the bags. Why is it important to pat-dry the outside of the bag? Explain. 6. In the demo you saw the first week of lab, a dialysis bag is filled with distilled water. Its weight was recorded, and then the bag was placed in a beaker containing some sucrose solution. After 15 to 30 minutes, the bag was removed and weighed again.
a) Was the final weight (mass) greater or less compared to the initial weight (mass)? If you didn't see the demo, what is your prediction?
b) Does this dialysis bag represent a cell that's in a hypertonic solution or hypotonic solution? Explain your answer.
c) The lab you did in Lab 1 was slightly different from the demo. What did you learn about the dialysis tubing membrane in the demo? What did you learn about the dialysis tubing membrane in the lab?
d) Based on what you learned through the demo, Lab 1, and Chapter 3 in the textbook, how is the dialysis tubing membrane similar to a cell membrane?