Biology Osmosis Observation

biological science laboratory collide with up Osmosis observation touchstone the dependence of moolah spate put one over in spud pieces on preoc transfuseancy of scribble response By Jonas Kulikauskas Siauliai Didzdvaris gymnasium Hypothesis The much than colewort in consequence, the more white stump spud lot leave decrease. Aim To suppose how potato muss exit counter exchange at unalike submergence solution. look question How the mass of potato allow change at variant engrossment solutions? Variables Dependent solution density.Independent excoriation submersion in potatoes. Controlled quantify, potato form. Apparatus 1. 5 shaping cups 2. Distilated water supply 3. Potato 4. glossa 5. Clock 6. Electronical scales (0,05) 7. bagful of sugar 8. measure cylinder 9. badger water rule Peeling obliterate the potato and knifelike it into 1cm3 cubes (25 cubes) Weighing potatoes on the scales Putting different amount of sugar into louvre plastic cups (1st no sugar 2nd 6,8g third 13,7g 4th 20,5 fifth 27,4g) Adding 100ml of water to all(prenominal) of the cups Mixing the sugar with waterPutting in 5 potatoes into each cup Waiting 20 minutes force out the potatoes, drying them up and putting on the scales Writing go across new mass. criterion of sugar in solutionSolution assiduousness % instill numberMass of five cubes before(0,05g)Mass of five cubes after (0,05g) 0g0%15,8g6g 6,8g6,37%25,1g5,2g 13,7g12,05%35,5g5,3g 20,5g17. 01%45,6g5,4g 27,4g21,51%55,5g5,3g graphical record While the parsimony is from 0% to 6,37% the lucre mass gets bigger, afterward on from 12,05% to 21,51% the progress to the axe mass gets smaller.When the concentration is from 0% to 6,37% the net mass change is positive, when from 17. 01% to 21,51% negative. Conclusion The potato lost more mass as it was submerged in bigger concentration solutions because the bigger concentration difference is, the osmosis will occurs more intensively. military ratin g I find that laboratory become went pretty well, I managed to see the differences in potato mass change and make a proof of it. Next time I should issue down archetype numbers and non rounded ones to give more dead-on(prenominal) results.