Investigating the concentration of the solutions inside the vacuole of a potato cell. :: essays research papers

Osmosis InvestigationWe are trying to find out what the submerging of the origins is at heart the vacuole of a potato cell.We pull up stakes investigate how the mussiness of the potato splinterings variety in polar sucrose solution preoccupancys.We will use osmosis to do this.I will be measuring and controlling many disagreeent variables, these include -The dependent Variable Weight of potato chip free lance Variable Concentration of sucroseControl Variables consist of -1.Temperature2.Surface res publica of potato3.Volume of sucrose solution4.Same time for each(prenominal) potato chip submerged in solution5.Potato chips alone from same potatoThe effects on the dependent variables in all differ here is how the main variables in my experiment work out.Variable order on Dependent Variable Surface area of potato chipThe greater the surface area the more water it will be able to absorbSame chip from the same potatoThe transmittable make-up will be the same and wherefore the partly permemble tissue layer will be similarTime left in the solutionThe longer spent in solution the more that is absorbed practical application on the potato chipsIf not rinsed off and dried after a certain period of time the chips will form a come up of sugar thus decreasing surface areaQuantitative anticipation I predict that the effect of changing the sucrose ducking will be that as the concentration of the sucrose solution increases, first of all the mass of the chip will increase, and then the change in mass will gradually decrease until mass is lost and this mass tone ending will gradually increase in amount.Because when the sucrose concentration is low, the concentration of water outside the cells of the potato chips will be greater than that inside, and therefore water will osmosis into the cells of the chip which will gain mass. As the concentration of sucrose increases the concentration of water outside the call will last wrench less than inside the cells of t he chip and mass will be lost.DependentVariableInside the cells Outside the cellsDilute solution grueling solutionHigher water concentration Low water concentrationKey= Sucrose particle= water molecule= osmosis= partially pervious membraneIn the higher sucrose concentration solution, the net exploit of water (osmosis) is to the outside of the cell, and the chip will lose mass, the cells will become plasmolysed.The chip in a low concentration of sucrose solution, is the turnabout of the diagram above, in that the water osmoses into the cells of the chip, mass it gained, through osmosis of water into the show cells, the cells will become turgid.