Exercise 3: Membranes

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MAKE PREDICTIONS:Bag ABag BBag CBag DFigure 4: Using the figure 2a-d above, draw in the movement of water according to yourpredictions. Use the table below to explain the reasoning for your predictions.BagAExplanationBCDTable 2. Osmosis Experiment Predictions4
Table 3: Observed Results0 min 15min 30min 45min 60minBag AInitialWt.TotalWt.Wt.ChangeTotalWt.Wt.ChangeTotalWt.Wt.ChangeTotalWt.Wt.ChangeBag BBag CBag D• Using Excel, construct a graph that depicts the changes noted in each bag over time. Make sureto label the axes correctly and plot each bag as a separate curve.Questions:2. Describe any changes observed or measured during your experiment. Did these supportyour predictions? Explain.Bag A:Bag B:Bag C:Bag D:3. Describe any problems you may have encountered during your experiment. Did this affectyour results? If so, explain how.4. (a) Is your null hypothesis or alternative hypothesis supported by your data? Explain. (b)Do you reject or fail to reject your null hypothesis?5
Page 1 and 2: Exercise 3: Membranes______________
Page 3: Procedure:1. Fill the bowl at your
Page 7 and 8: Fig. 4.26Figure 5. DiffusionIn this
Page 9 and 10: • Observe each beaker for no more
Page 11 and 12: Using a ruler, measure the distance
Page 13 and 14: MAKE PREDICTIONS in Table 5:Tube#Co
Page 15 and 16: Table 7. PredictionsExtracellular E
Page 17 and 18: Questions:25. Compare and contrast

Exercise 3: Membranes

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