Coursework.Info - Inspiration in an Instant

On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:

Investigation to find the concentration of potato cells using Osmosis Aim To find the concentration of water in potato cells. Osmosis is the net movement of water from an area of high concentration to an area of low concentration through a selectively permeable membrane. I'll know when I've found the concentration of water in potato cells when the mass of the potato remains the same before and after the experiment. This is because there would be no net movement of water between the potato and the surrounding solution. When this happens, the solution is said to be isotonic to the potato cells. Preliminary Experiment I used three boiling tubes, each with a different concentration of sucrose solution. Sucrose concentration (%) Water (cm2) Sucrose (cm2) Boiling tube 1 0 10 0 Boiling tube 2 0.1 9 1 Boiling tube 3 1 0 10 I weighed the three cylinders of potatoes before the experiment and then left each potato in a different concentration for thirty minutes. After the experiment I weighed...

Get instant access

• Instant, unlimited access to our documents in full
• Swap your work for free access, or pay £4.99
• To see the full version of this document and 151,713 others