In each case there is a lot 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 both directions, but more water will come into the cell than will leave.
Conclusion However despite this, I think that the experiment I carried out, (given the apparatus I was given to carry out the test) was successful, my results were consistent, and I was pleased with the comparison of my results with my previous prediction. I followed the method plan correctly; I believe I gained accurate and sufficient enough results to conclude the experiment, and to prove my initial prediction.
The cell membrane is similar to the membrane mentioned above, so the cell would lose water because of osmosis if it were placed in an environment in which water concentration is greater than that of the cell. A solution is isotonic if the concentration of dissolved substances is the same as the concentration inside the cell. Osmosis does not occur in an isotonic solution. A hypotonic solution is a solution in which the concentration of dissolved substances is lower than the concentration inside the cell. If a cell were put in a hypotonic solution, osmosis will cause water to move through the cell membrane into the cell.
Eventually the cell stops taking up water, even though the concentrations inside and outside are not even. This is because the cell wall becomes stretched and prevents any more water entering. The cell is said to be turgid. Cells placed in a concentrated sugar solution lose water by osmosis, as the water potential is higher inside the cell. As there are more water molecules inside the cell, more water molecules leave the cell than enter it.
If a plant cell is placed in pure water, water outside the cell will flow into the cell by osmosis as the interior of the cell has a lower water potential than the pure water. The reason why the interior has a lower water potential is because the cytoplasm has substance like glucose dissolved into it. As more and more water flows into the cell the cell becomes more and more rigid. Eventually the cell becomes turgid and this is when the cell will not accept anymore water as the water potential inside and outside now balanced. If we replicated this with an animal cell it would burst as water would enter osmotically and then the cell would become rigid and there would be no support from a cell wall, and thus the cell will burst.
The Effect of Osmosis in Plant Cells Introduction ============ Osmosis is the diffusion of water molecules across a partially permeable membrane, from a region of high concentration to a region of low concentration. The partially permeable membrane contains a series of small holes, allowing only water molecules to pass through, as shown in the diagram below. The glucose molecules (represented by red circles) are too big to fit through the membrane. As there are a greater number of water molecules (represented by blue circles) on the left side, there is a steady net flow into the right side with fewer water molecules, i.e. into the stronger solution.
This usually results in equilibrium. When the plant cell is full of water, the weight increases and we say that it is turgid. The cell wall prevents the cell from bursting. Cell in a strong sugar solution When a plant cell is placed in a strong sugar solution, there is more water in the cell then in the surrounding solution, so water is drawn out by osmosis. This makes the cell decrease in weight and it becomes flaccid... ... middle of paper ... ... sure that on my behalf, my results are accurate.
As a result, more water molecules go in than come out. Overall, the effect is that water molecules pass from the area of low sugar concentration (the soil) into the area of high sugar concentration (the cell) and any minerals dissolved in the water get carried into the cell as well. [IMAGE]Osmosis in red blood cells- red blood cells have no rigid cell wall, therefore they cannot become turgid and if they are put into a very dilute water solution they will fill up with water and eventually burst. . In concentrated solutions, water is sucked out of the cell by osmosis and the cell shrinks.
Therefore the whole tissue will react because it is just a huge cluster of cells. These changes occur because of osmosis. Osmosis is the movement of water molecules from a dilute solution (has a High Water Potential) to a more concentrated solution (has a Low Water Potential) through a selectively permeable membrane in order to achieve equilibrium. A membrane that allows water to pass through, but not solute molecules. Osmosis is a biological process If equilibrium is ever achieved then water molecules will move back and forth between the substances.
Osmosis is simply the movement of water molecules from a region of high water concentration to a region of low water concentration, across a semi-permeable membrane. A semi-permeable membrane is a barrier with small holes in, the holes are so small that only water can pass through them, bigger molecules like glucose cannot. The water molecules actually pass both ways through the membrane but because there are more on one side than the other there is a steady flow into the region with the fewer water molecules, i.e. into the stronger solution (of glucose). This causes the glucose-rich region to fill up with water.