The effect of a sucrose concentration on the rate of reaction of a potato tissue

GCSE: Biology

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Preliminary Experiment

Method

1. Thoroughly dry a visking-tubing bay.

2. Weigh it to two decimal places on a top pan balance. This is the original mass.

3. Put it in a test tube containing 0.0m/l of Sucrose solution so that nit is fully submerged.

4. Repeat steps one, two and three until there are three visking-tubing bags at each concentration of Sucrose.

5. Label test tubes clearly with initials, concentration and repeat number (1,2 or 3)

6. Leave for twenty-four hours.

7. Remove bags, dry thoroughly and reweigh to find the final mass at each concentration.

8. Calculate the change in mass and the % change in mass for each concentration.
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