investigating the effect of different concentrations of sugar solution on plant tissue
- Created by: jessicate
- Created on: 05-05-18 18:37
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- transport in and out of cells-required practical
- potatoes can be used to measure the effect of sugar solutions on plant tissue
- 1. cut some cylinders of potato tissue and measure their mass
- 2. place the cylinders in different concentrations of sugar solution
- 3. after about 30 minutes remove the cylinders and measure their mass again
- if the cylinders change in mass, they have gained or lost water by osmosis
- sample method
- considerations, mistakes and errors
- the cylinders need to be left in the solution long enough for a significant change in mass to occur
- before the mass of the cylinders is measured again, they should be rolled on tissue paper to remove any access solution
- variables
- the independant variable is the one deliberately changed-in this case, the concentration of the sugar solution
- the dependant variable is the one that is measured-in this case, the change in mass of the potato
- the control variables are kept the same-in this case, the temperatures, the length of time the cylinders were left in the solution and the volume of the solution
- hazards and risks
- care must be taken when cutting the cylinders of potato
- potatoes can be used to measure the effect of sugar solutions on plant tissue
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