Investigate the Osmosis in Potato Rods in Various Concentrations of Sal

Investigate the Osmosis in Potato Rods in Various Concentrations of Salt Solutions debutOsmosis is the movement of water molecules across a partiallypermeable membrane from a region of high water potential difference to a regionof outset water potential. It can be affected by several differentvariables including concentration of salt resolves. When a plant cellis range in delicate water it will become turgid and it will not burst dueto the presence of a cell wall and a large abiding vacuole and whenit is put in a concentrated solution it will be plasmolysed, on theother hand when an animal cell is put in fine water it will burst dueto the absence of the cell wall which is only present in the plantcell and if is plant cell is put in a concentrated solution it willshrink.What is the water potential?The water potential of a solution is a measure of whether it is likelyto escape or gain water molecules from another solution. A dilutesolution, with its high concentration of water molecules is said tohave a higher water potential than a concentrated solution, becausewater will f humble from the dilute solution to the concentrated solution (from a high water potential to a low water potential).Pure water has the highest water potential because water moleculeswill flow from it to any other aqueous concentrated solution even ifthis solution is a highly dilute solution.Variables that affect the osmosis process in the potato rods Independent variables The Difference in concentration of saltsolutions This will affect the osmosis in the plant cell as I willprepare five different concentrations of the salt solutions and theyare 0.0, 0.3, 0.5, 0.7, 1.0and this is how they are prepared- For preparing the concentration of 0.0 I employ pure water.- For preparing the concentration of 0.3 I measured 3 cm3 of the salt solution by using the syringe and poured it into the test tube that is designate 0.3, therefore I measured 7 cm3 of water and poured it into the same te st tube.- For preparing the concentration of 0.5 I measured 5 cm3 of the salt solution and poured it into the test tube that is labeled 0.5, then I measured 5 cm3 of water and poured it into the same test tube.- For preparing the concentration of 0.7 I measured 7 cm3 of the salt solution and poured it into the test tube that is labeled 0.7, then I measured 3 cm3 of water and... ... points on thegraphs were plotted as accurately as possible practically.All my results supported my prediction I made and attentioned me to make astrong trend in the graph.Although, I might have got few irrational results but that is to beexpected, I whitethorn be have measured any substance which I am using wrongor not accurately. I repeated the experiment cardinal times to get theaccurate average results and to ensure that I had not made anymistakes and so as not to have any anomalous results in my experimentand there wouldnt be any chance for error to occurs.My results seem reliable as I am basi ng my results reliability on ahypothesis and my own prediction. I repeated the same experimentsusing different concentration of the salt solution or change thetemperature so as to help the rate of osmosis in the potato rod.Also for more accurate results, I could extend my coursework bytesting the same brand of potatoes using different substances. By thisI mean using a different thing instead of salt, i.e. sugar or maybeany fruit juice. Then I could lift out whether osmosis occursdifferently with different things diluted in the water. I could evenuse different vegetables and fruits.