Investigating Osmosis in Potato Cells :: Papers

Investigating Osmosis in Potato Cells Planning Aim- To check over the effect of different concentrations of sucrose solution, on potato jail prison cells Osmosis- Osmosis is the passage of exalted pee concentration through a semi-permeable membrane to a neighbourhood of low irrigate system 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 forgo some things to pass through them but prevent other things from divergence through. Cell membranes willing allow small molecules same(p) Oxygen, water, Carbon Dioxide, and so forth 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 shield there is a component of water, there is a high concentration of water. Regions 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 water concentration than the cell, the cell will gain water by osmosis. Water molecules are free to pass across the cell membrane in two 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 exactly the same water concentration as the cell there will be no movement of water across the cell membrane. Water crosses the cell membrane in two directions, but the come in 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 meet water by osmosis. Again, water crosses the cell membrane in both directions, but this time more water leaves the cell than enters it. Therefo re the cell will shrink and become flaccid Potato plant cells- Plant cells unceasingly have a strong cell wall covering them.