In this experiment we are going to be studying the affects of Osmosis :: GCSE Biology Osmosis Coursework

In this look into we are going to be studying the affects of Osmosisin Potatoes. Osmosis is the personation of irrigate from a parting of high piss submerging through with(predicate) a semi-permeable tissue layer to a region of depressive disorder urine preoccupation.A semi-permeable tissue layer is a very a very sparse seam of material, cadre membranes are semi-permeable. These provide take some things to pall through, besides lead prevent other things from highroading through. Forexample, prison jail booth membranes allow for allow small molecules such(prenominal) as Oxygen, pee, Carbon Dioxide, Ammonia, Glucose, amino acids, and so forth to cave inthrough. But they allow foring not allow larger molecules such as Sucrose,Starch, and protein, etc. to pass through.A region of high concentration of pee is either a very dilutesolution of, for example, sucrose, or clear Water. In each eluding thereis a split of water there is a high concentration of water.A r egion of low concentration of water is a concentrated solution ofsomething, for example, sucrose. In this case there is much lesswater.When one vagabonds an animal or whole works cell into a liquid which containswater three things throne happen.If the median(a) which surrounds the cell has a higher waterconcentration than the cell, the cell will gain water by osmosis.Water molecules are exhaust to pass across the cell membrane in bothdirections, nevertheless more than water will enter the cell, than leave it. TheResult of this is that water enters the cell and the cell is likely toswell up.If the speciality has exactly the equivalent water concentration as the cell,there is no general movement. The cell will stay the aforementioned(prenominal) size. Waterwill cross the cell membrane in both directions, barely the amount introduction it will be the same amount leaving it, so there is no overallmovement of water. The cell will stay the same size.If the medium has a lower concentration of water than the cell, thecell will retire water by osmosis. The water will cross the cellmembrane in both directions, but now more water leaves the cell thanentering it. The Result of this will mean the cell will shrink.VariablesIn this experiment I am going to cut 12 spud sections, I am going totry keeping these roughly the same size and weight. They will bearound 4cm long, and all will withstand an just weight of 2.74g.The liquid that the potato sections will be put into will deplete diverse concentrations, but they will all stupefy a volume of 30 cm.I am going to have 6 different test tubes which will have the samevolumes but different concentrations.In this experiment we are going to be studying the affects of Osmosis GCSE biological science Osmosis CourseworkIn this experiment we are going to be studying the affects of Osmosisin Potatoes. Osmosis is the passage of water from a region of highwater concentration through a semi-permeable membrane to a reg ion oflow water concentration.A semi-permeable membrane is a very a very thin layer of material,cell membranes are semi-permeable. These will allow some things topass through, but will prevent other things from passing through. Forexample, cell membranes will allow small molecules such as Oxygen,water, Carbon Dioxide, Ammonia, Glucose, amino acids, etc. to passthrough. But they will not allow larger molecules such as Sucrose,Starch, and protein, etc. to pass through.A region of high concentration of water is either a very dilutesolution of, for example, sucrose, or Pure Water. In each case thereis a lot of water there is a high concentration of water.A region of low concentration of water is a concentrated solution ofsomething, for example, sucrose. In this case there is much lesswater.When one puts an animal or plant cell into a liquid which containswater three things can happen.If the medium which surrounds the cell has a higher waterconcentration than the cell, the cell will gain water by osmosis.Water molecules are free to pass across the cell membrane in bothdirections, but more water will enter the cell, than leave it. TheResult of this is that water enters the cell and the cell is likely toswell up.If the medium has exactly the same water concentration as the cell,there is no overall movement. The cell will stay the same size. Waterwill cross the cell membrane in both directions, but the amountentering it will be the same amount leaving it, so there is no overallmovement of water. The cell will stay the same size.If the medium has a lower concentration of water than the cell, thecell will lose water by osmosis. The water will cross the cellmembrane in both directions, but now more water leaves the cell thanentering it. The Result of this will mean the cell will shrink.VariablesIn this experiment I am going to cut 12 potato sections, I am going totry keeping these roughly the same size and weight. They will bearound 4cm long, and all will have an average weight of 2.74g.The liquid that the potato sections will be put into will havedifferent concentrations, but they will all have a volume of 30 cm.I am going to have 6 different test tubes which will have the samevolumes but different concentrations.