... solution of sugar the cells lose water across the membrane and shrivel. This is referred to as flaccid. Plan: Aim: To investigate what effect different concentrations of sugar solutions have on potato cells. Fair Testing: In this experiment on osmosis I would like to control all the variables and keep them constant but I will change the concentration of the sugar solution. I will see what impact this has on the mass of a sample of potato tissue. I must: 1: Keep the potato samples the same length (2cm). This is because if one potato sample is 1cm long and one is 3cm long then the 3cm long sample will have a larger surface area and will osmose much more quickly. 2: Use the same potato. Several factors about the potato may affect the experiment. For example the age, variety and sizes might be different, which means one potato might have more water in ...

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