Diffusion and osmosis lab Essay

What happened to the iodin, the starch, the glucose and the water in your experiment? Explain which molecules did/did not hybrid the membrane and in which direction they moved. Substance Prediction Results amylum Starch will stay in the cadreulose tubing The results were correct Glucose Glucose will withdraw and move out The results were correct Iodine The iodine will transport color The results were correct 2. Did the results of your experiment agree or disagree with your farsightedness?Why or why not? My results agreed with my prediction because the starch, glucose and iodine stayed in the cellulose tubing, or the water changed color. 3. Considering your observations, suggest an explanation for the results of your experiment. What assumptions did you make closely the nature of the membrane? The cell contains what enters. Small molecules can quickly go by means of and out of the cell. Meaning the small molecule diffuse through the treat of osmosis. Lab 2 ELODEAObjective To demonstrate and inform effects of osmosis across a living membrane. 1. What changes took place in the pondweed cell after flavor water is added? Did these changes agree or disagree with your prediction? Why or why or not? When the salt was added to the water it caused the water engrossment to lessen but the solute to increase. There ar more water molecules going out of the cell than in the cell the cell membrane began to shrink known as dehydration. 2.Explain, in detail, the process that caused these changes to occur. The elodea would not be able to live in salt-water surround because on that point is a greater concentration of the water in the cell. When there is salt in the cell, it would die. 3. Is this process reversible? If so, describe how you would reverse it? Yes, I think this process is reversible. You would have more of a salt antecedent then a water solution. Then you would add the water to the concentration then it will be revered