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An investigation into the effect of a range of sucrose solutions upon Potato Tissue.

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Introduction

An investigation into he effect of a range of sucrose solutions upon Potato Tissue Hypothesis As the concentration of sucrose increases, the mass of potato decreases. Apparatus 5 Test Tubes Sucrose solution of 0.0, 0.2, 0.5, 1.0, and 1.5 Molarity 10 piece of Potato Tissue Cork Borer Scalpel Beakers Weighing Scales Method A standard sized cylinder of potato tissue is put into a beaker. Using a cork borer of a known size, in order to cut the cylinder of tissue, carries this out. This prepared cylinder has all peel tissue removed from its surface, and is cut into a standard length, using a scalpel. ...read more.

Middle

Final (g) Change (g) % Change 5.48 4.82 0.66 0.66/5.48*100 12.0% 5.30 4.49 0.81 0.81/5.30*100 15.3% 5.44 3.84 1.60 1.60/5.44*100 29.4% 4.89 3.27 1.62 1.62/4.89*100 33.1% 5.63 3.46 2.17 2.17/5.63*100 38.5% Analysis By observing the table of results and the bar chart above, we can analyse that, as the concentration of the sucrose molarity increases, the weight of the potato tissue decreases. Therefore, this proves my hypothesis to be correct. There is, however, a pattern in my graph, showing that the average weight after Osmosis and the concentration of sucrose are inversely proportional. As the concentration of sucrose rises, the average weight after Osmosis decreases. ...read more.

Conclusion

I also think that I gave the experiment enough time for Osmosis to occur. Maybe if I were to repeat the experiments again I would probably try using a wider range of concentrations as to find a wider range of more varied results. The most difficult part of this experiment, in my opinion, was the accurate cutting of the potatoes. It was very difficult to accurately cut the potatoes to the same length and to get them all to the same weight. In my opinion, there were not many of my results, which were out of the ordinary. Slight differences may have been the result of human error. This could mean that some would have had more excess water than others, resulting in an increased mass. However, I think that my experiment was successful and am quite pleased with my results. ...read more.

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