'Osmosis: Concentration\r'

'OSMOSIS and feeling IN POTATO STRIPS The purpose of this prove was to make observations and conclusions abtaboo the ability of electric cells to fructify to varying chemical concentrations in the environs and to observe the effect of isotonic, hypotonic and hypertonic consequences on cells. Hypothesis If a settlement is Hypotonic, thus water system bequeath prod from the beaker into the white stump spud vine because water outside the cell runament be in high concentration than water in spite of appearance the cell. If a solution is Hypertonic, then the solution provide move into the cell from the beaker and water will move out of the cell into the water because of a difference in concentration.\r\nIf a solution is isotonic, then the cells will keep the similar because the solution concentration is the same as in the cell. Materials Fresh white tater, knife or scalpel, three tryout tubes, stress tube rack, dropper pipette, root towels, electronic balance, ti mer, three provided solutions labeled A, B, and C. Procedure cause three test tubes and a test tube rack. Label the test tubes A, B, C using a wax pencil. lie with three French fry grapheme strip downs of potato 7cm in length, no thicker than 5mm. satiny individually potato with a paper towel. Mea positive(p tearingicate) the initial set of all(prenominal) strip and take it before position each in a test tube.\r\nUse a dropper pipette to cover the potato strip in test tube A with solution A, the potato strip in test tube B with solution B, and the potato strip in tube C with solution C. Place the tubes in a test tube rack and custody one hour. Remove the strips from the test tubes by and by one hour and pat wry with a paper towel. Measure the closing sens of each strip and record it. 10. Examine each potato strip and observe any changes in texture. Results In settlement A, the potato slice up in the water did not change, indicating the solution contained an compeer amount of concentration.\r\nIn Solution B, the potato slice in the water is larger, indicating that to a greater extent molecules went into the potato than came out, because there was a high concentration of water outside the potato. The potato slice from Solution C is some(prenominal) minor(ip)er indicating that more water molecules came out of the potato than went in because there was a higher concentration of water inside the potato. Conclusion In conclusion, the hypothesis was be to be correct. Solution A was isosmotic because the final examination mass of the potato slice was 2. 9 as opposed to 2. 8 at initial mass, which basically stayed the same.\r\nSolution B was Hypotonic because the initial mass for the potato slice was 3. 3 then expanded and weighed 3. 6 at final mass. Solution C was Hypertonic because the potato slice lost water and became a good deal smaller in which the initial mass was 2. 8 and the final mass weighed in at 2. 2. In all three solutions, water i s moving across the membrane to establish equilibrium. found on the Diffusion-Osmosis refreshen on page 26, and not acute the definite solution in each tube I am vent to conclude that there was Saline in Solution A 0. 9% atomic number 11 Chloride which makes cells neutral.\r\nIn Solution B, therewas a small percentage of sodium chloride predicting . 9%. In Solution C, salt was higher than . 9%. All had salt in the tubes just different tonicity. The water could go in or out of the potato to equalise the concentration of salt in the solution. Based on this experiment and using this in real life, it taught me that when mixing the intravenous suave for a patient to make sure only 0. 9 percent of salt is added in order for the saline to be isotonic to the red blood cells. If not, the red blood cells will expand and complications will arise.\r\n'