Diffusion and the Cell Membrane 28 Lab 1: Osmosis across a semi-permeable membra

Question

Diffusion and the Cell Membrane 28 Lab 1: Osmosis across a semi-permeable membrane (con't) Cell in Initial Mass Final Mass Relative change Cup A Cup B Cup ? Cup D Tonicity? in mass (%) Table 1. Results from Lab 1. Results 1. Generate a table similar to Table 1 above with the following information: Initial mass of each bag Final mass of each bag Relative change in mass Tonicity of your final simulated cells 2. Be sure to give your table a descriptive title. 1. In the conclusion section of your report, be sure to discuss your results (i.e. change in mass) and discuss whether the results supported or rejected your hypotheses. If your results rejected your hypotheses, be sure to expand on the possible reasons these results may have occurred. Submission 1. Create your lab report using a word-processing software (i.e. Microsoft Word) and save it as a .doc or.docx file. Submit your lab report to your instructor according to his or her instructions. 2. Note: This lab will be graded using the Lab Report Grading Rubric for the Formal Lab Report.

Explanation / Answer

Contents in Bag Initial Mass (g) Final Mass (g) Relative Change in Mass (%) Tonicity Changes Bag A (Distlled Water 80 g 76 g -5% Hypotonic More rigid and firm Bag B (0,2 M) 64 g 68 g 6.25% Hypertonic Less rigid and soft Bag C (0.6 M) 49 g 53 g 8.16% Hypetonic Less rigid and soft Bag D 0.56 g 0.56 g 0 Isotonic No change

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