Osmosis lab report
Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration. Diffusion results because of the random movement of particles. The diffusion of water into and out of a selectively permeable membrane is called osmosis. Because of the selectively permeable membrane, nothing but water and other very small particles can be diffused through osmosis. 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 wat
For the experiment, the following materials were used: potatoes, petri dishes, a balance, a graduated cylinder, distilled water, sucrose solution and five beakers. Each of the beakers were labeled with a different sucrose concentration (0.0; 0.2; 0.4; 0.6; 0.8). Three potato cores equal in length and width were cut for each beaker, the cores are weighted and placed in the beakers. After that, the solutions are placed in the beaker according to their labels. The solutions will be in the beaker for twenty-four hours. After twenty0four hours, the cores are taken out of the solutions and blotted dry. Their mass is recorded in the Final Mass column of the data table. The percent change in mass is calculated and recorded for each sample. The results supported my hypothesis because for the 0.0 sucrose concentration the percent change in mass was 15% for the 0.2 concentration, it was 0%, for 0.4 it was 2%, for the 0.6 concentration it was 29%, and for the 0.8 sucro
Some common words found in the essay are:
, Final Mass, sucrose concentration, change mass, percent change, percent change mass, concentration dissolved substances, concentration inside cell, cell cell, dissolved substances, concentration inside, inside cell, concentration dissolved, equilibrium outside cell, concentration percent, cell lost, concentration percent change,
Approximate Word count = 650
Approximate Pages = 3 (250 words per page double spaced)
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