An Experiment to find out the effect of osmosis on potato cells

The first 200 words of this essay...

An Experiment to find out the effect of osmosis on potato cells

Plan

Apparatus:

* A borer

* 25 test tubes

* 5 test tube racks

* 2 potatoes

* A ruler

* A sharp knife

Variables: Four different sugar solutions at 10%,20%,30%and40% and distilled water

Hypothesis: I hypothesis that the higher the sugar the less the potato size will increase. I think this because I think it will be harder for the liquid to get in because it is denser.

Using the borer make cuts into the potato and pull out the pieces of potato. Chop the pieces so they are 20mm long repeat process 25 times. This experiment must be statistically viable i.e. the potato pieces must be identical. If you come to a bad piece of potato discard it. Put all the pieces into individual test tubes. Using one of the solutions fill up 5 test tubes to exactly the same height. Repeat process for all the solutions. Put test tubes into racks and leave for 24 hours. This should be done as quickly as possible to ensure each piece of potato