Science essay example: Osmosis experiment

Planning Experimental Procedures:
Introduction
Osmosis is the movement of water molecules across a partially permeable membrane from a region of high water concentration to a region of low water concentration. Osmosis makes plant cells swell up if they’re surrounded by weak solution

and they become Turgid.
A partially permeable membrane allows some molecules to pass through it and not others.
In this investigation I will try to show what happens when Osmosis in Potato (plant) Cells comes in contact with different measures of Glucose solution added to Distilled Water.
Evaluating Evidence:
Throughout the experiment I had no real problems, this is because I followed my method closely, stuck to safety rules and took care insuring a fair test was made. My prediction was correct.
I could improve the experiment by changing the percentages, repeat the experiment more times for accurate results making sure any odd results were ruled out, I could also differ the size of potato chips maybe to short and fat rather than tall and thin this would tell you whether the surface area of the potato chips effects the process of osmosis.
Conclusion:
In this investigation I feel I have completed what I set out to do, which was to show what happens when Osmosis in Potato (Plant) Cells comes into contact with different measures of Glucose (Sugar) Solution added to Distilled Water.
Osmosis moves the water from the weaker sugar solution to the stronger sugar solution making the mass of the stronger sugar solution heavier.
Sources Used:
Throughout this write up I have used a wide range of sources to collect images and information to help me understand in depth the process of Osmosis, they are: the Internet, Encarta and text books (All about Biology & GCSE Biology).
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