Investigating Osmosis in Potato Cells :: Papers

Investigating Osmosis in Potato Cells Planning Aim- To investigate the effect of dissimilar concentrations of saccharose solution, on potato cellular telephones Osmosis- Osmosis is the public life of high urine concentration through a semi-permeable membrane to a region of low water concentration, i.e. the passage of water. Explanation of osmosis For osmosis to occur there must be semi-permeable membranes are very thin layers of material (cell membranes are semi-permeable) which sanction some things to pass through them alone prevent other things from passing through. Cell membranes will allow small molecules like Oxygen, water, Carbon Dioxide, etc. to pass through. Cell membranes will not allow larger molecules like Sucrose, etc. to pass through. Regions of high concentrated water are either a very dilute solution of something like sucrose or pure water. In each case there is a lot of water, there is a high concentration of water. Regio ns of low concentrated water are a concentrated solution of something like sucrose. In this case there is much less water. If the solution surrounding the cell has a higher(prenominal) water concentration than the cell, the cell will gain water by osmosis. Water molecules are free to pass across the cell membrane in both directions, but more water will come into the cell than will leave. The cell is likely to swell up and become turgid. If the solution is only the uniform water concentration as the cell there will be no movement of water across the cell membrane. Water crosses the cell membrane in both directions, but the amount going in is the same as the amount going out. The cell will stay the same size. If the solution has a lower concentration of water than the cell the cell will lose water by osmosis. Again, water crosses the cell membrane in both directions, but this time more water leaves the cell than enters it. Therefore the cell will shrink a nd become flaccid Potato plant cells- Plant cells ever so have a strong cell wall covering them.