How does the concentration of sucrose affect the weight Essay -- GCSE

How does the concentration of saccharose affect the weightof pieces of tater after osmosis has interpreted place?AimThe aim of this is experiment is to investigate how much sucrose is ina potato. We are going to investigate the effect of differentconcentrations of sucrose on the weights of pieces of potato afterosmosis has hold inn place.PredictionI predict that the less concentrated the solution of sucrose is, thegreater the weight of the potato pass on be. I predict this becauseosmosis is the movement of water system from a region of high waterconcentration to a region of low water concentration with and through with(predicate) asemi-permeable membrane i.e. the cell wall of the potato. If theconcentration of water inside the potato is high accordingly the water allow forpass out through the cell wall, decreasing the weight of the potato.If the concentration of water outside of the potato is high then thewater from outside of the potato provide pass through the cell wall int othe potato, thus increasing the weight of the potato. A lowconcentration of sucrose will have a greater ratio of water to sucrose, so more water will pass thorough into the potato in anattempt to even up the amounts of water and sucrose on both sides. Ifthe concentration of sucrose outside of the potato is high then therewill be less water to pass through into the potato and the potato will accordingly lose water from inside in an attempt to even up theconcentrations of sucrose and water on both sides. If the cell has missed water then it will not weigh as much as a cell full of water asthe cell will be flaccid. If the cell has gained water then it will beturgid and will weigh more. The higher the concentration of the sugarsolution, the faster osmosis will take place. I think this because themore sugar in the water, the longer it will take for it to balanceout.Some background informationOsmosis is the movement of water from an nation of high concentration(lots of water particles) to an area of low concentration (few waterparticles). It is only the movement of water, as only water particlesare small sufficient to pass through the semi-permeable cell membrane ofthe plant. Osmosis chooses plants cells swell up if they are surroundedby a weak solution i.e. a lot of water, and they therefore becometurgid. This is useful in giving support for cells and openingstomatal guard cel... ...in that will affect the next measurement. Ourresults were also left by a window, so the temperature could have beenaffected if the window was open or the weather outside was hot. Toimprove this experiment next time we can also make sure that we leavethe test tubes in the test tube racks nowhere near anything that willaffect the temperature i.e. a heater or a window.The coating may only be valid only within a certain range, if wewere to use even more precise concentrations of sucrose solution thenwe can eventually find out the precise concentration that provides thecorrect coiffe. The concentrations used were slightly too vague as Ihad to say that the answer must lie between two amounts. However, ifwe were to improve the experiment by narrowing down the concentrationswe will use even more then this will be time-consuming and verytedious. Therefore, it will not be a good idea to try and improve theexperiment in this way.To extend this probe we can also experiment changing thefollowing variables Temperature of the experiment Surface area of the pieces of potato Weight of the potato How long the experiment is left for.