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The aim of my experiment is to investigate the effect of osmosis via potato tubers.

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  • Essay length: 3002 words
  • Submitted: 08/09/2003
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GCSE Life Processes & Cells

The first 200 words of this essay...

Biology Coursework Investigation

The aim of my experiment is to investigate the effect of osmosis via potato tubers.

I have chosen to investigate how the concentration of salt solution affects the rate of osmosis via potato tubers. I have chosen this factor because it is a relatively simple experiment to conduct and there is minimal risk of something going wrong, compared to other variables. Also from my research I have been informed that this experiment produces substantial results.

To ensure my experiment is a fair test the following factors must be considered:

* Concentration of the solution

* Size of the potato tuber (and mass)

* Volume of the solution

* Duration of time left in the solution

* Surface area of the potato tuber

* Age and type of potato used

* Temperature of the solution

To create a fair test all aspects of the experiment will have to be kept the same whilst one key variable is changed. For this experiment that means the concentration of the solution that the potato tubers are left in. If any of the non-variables (factors written above) are

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