PCB 2061L Lecture Notes - Lecture 2: Active Transport, Facilitated Diffusion, Membrane Transport
Get access
Related Documents
Related Questions
Exercise 2: Osmosis
Demonstrating Osmosis with an Artificial Cell Membrane
Initial Weight | Final Weight | Percent Difference | |
T= Tube B= Beaker | Group A Group B | Group A Group B | Group A Group B |
T= 40% Sugar B= Water | 5% 11% | ||
T-20% Sugar | -2.9% -7.4% | ||
T-10% Sugar B- 10% Sugar | 40.2 40.2 | 40.2 40.2 | 0% 0% |
T- Water B-20% Sugar | 3.2% 3.6% | ||
T-Water B-40% Sugar | 11.04% 9.95% |
(Other group of classmates percent difference for artificial cell results)
d) State whether the beaker solution is hypertonic, isotonic or hypotonic for each condition. If there are any discrepancies between what the results indicate and what you think should have occurred, explain this below.
Condition 1:
Condition 2:
Condition 3:
Condition 4:
Condition 5:
e) Is the change of weight in the dialysis tubing due to the movement of water, sucrose or both? Explain.