Investigate the factors affecting the rate of Osmosis :: GCSE Biology Osmosis Coursework

analyze the chemical elements extend toing the rate of OsmosisPlanningOsmosis is the spreading of water from a land absorption of soluteto a higher compactness of solute, through a parti anyy permeable membrane. In a high concentration of water the add of solute (e.g.sucrose) is low. This could be called a weak or dilute tooth root. In alow concentration of water the amount of solute is high. This could becalled a surd or concentrated solution. When a partially permeablemembrane divides deuce such solutions, the water provide move from the beaof high concentration to the area of low concentration until bothsides are equal. In lay out cells water flows through the cell palisade andcell surface membrane into the vacuole from the outside. As a result,the cell swells up. It doesnt burst as the cell wall stops the cellexpanding too much at this point we think a cell is fully turgid.AimThe purpose of my investigation is to check out the factorsaffecting the rate of Osmosis. The key factors I have found affectthis areLength - of membraneTemperature - of waterConcentration - of solutionThe factor I am going to investigate is the concentration of thesolution in which the potatoes are placed. By doing this I volition haveto control all other factors to cover a fair test, these are doingall the tests at room temperature to control the temperature as ahigher temperature would mean diffusion would occur quicker. The massand surface area of the potatoes at the beginning of the investigateare other controls I will need to monitor to ensure a fair test. Themass of the potato is a dependent inconsistent this means that it will bemeasured throughout the experiment. I will measure the mass in gramscorrect to 2d.p. The potato chip will be measured before it is put inthe solution, and after. This will seize us to see whether osmosis hastaken place, and to what extent.The volume of the solution that the potato chips are unplowed in must befair. The must b e alone covered in the solution, and the amount ofsolution will be kept the same because all the potato chips are thesame size. The amount of solution I cover each chip in will be 20cm.PredictionI predict in my experiment that the higher the concentration of sugarin the solution, the smaller the potato chip will become. I predictthis as the greater the concentration of water in the out-of-doorsolution, the greater the amount of water that enters the cell by