In this experiment we need six solutions: 0g per 100ml, which is just pure water, and 1 to 5 g/ 100ml in 1 g increments once the solutions are ready, pour them in to immerse the potato strips start the timer, and leave them for 20 minutes. - investigating the effect of concentration of a certain salt solution on the amount tissue of potato slices aim: the aim of the experiment is to investigate the effect of concentration of a certain salt solution on the amount tissue of potato slices osmosis is the movement of a solvent (eg water) through a semi permeable membrane, from a solution that has a lower concentration of solutes (eg salt) to one that has a higher concentration of solutes. The effect of osmosis in potato cells with different concentrations of sucrose solution aim: to test the effect of different concentrations of sucrose solution to osmosis in a potato cells by putting potato pieces in test tubes of water containing different concentrations of sucrose solution. Weight, will be an indicator of net osmosis in potato slices 1 use the 1 m sorbitol stock solution and distilled water to make 50 ml each of 00, 01, 02, 03. Compare results of the potatoes of the three temperatures given in step four with the three original weights of the potatoes given before the experiment ,if the weight is affected, it means that the temperature affect the osmosis of the potatoes.
In the osmotic concentration lab potatoes were used to see the affects of different concentrations of sucrose on the weight of the potatoes solanum tubersum more commonly known as the potato is the fourth most important food crop in the world. Prior to the experiment we carried out a short pilot test, using potato chips and solutions of strength 00, 10 and 20 molar solutions the chips were 25mm in length each, and each chip was placed in 5 cm3 of either distilled water/10 molar / 20 molar sugar solutions and left for 30 minutes. However if i were to carry out the experiment again there would be a few things that i would change when carrying out the experiment i used a range of 0, 02, 04, 06, 08 and 1 molar solution to see the effect of osmosis in the potato pieces.
The purpose of this experiment was to investigate the effects of osmosis in potato cells placed in varying concentrations of sucrose usage of ethyl alcohol instead of sucrose places doubts on the extent of osmosis and hence sucrose solution is best to be used. The effect of osmosis on potato tissue when placed in different concentrations of sugar solutions (encyclopaedia britannica :2005 deluxe edition cd-rom) place 4 potato slices -each a quarter of an inch in thickness - in 4 water bowls in which 1,2,3 and 4 spoons of sugar have been dissolved respectively. Materials required real lab procedure place the peeled potato on the tile and using the knife, cut both ends of the potato to make it flat use the knife to make a cavity at the centre of the potato from one of the flat sides almost up to the bottom. Osmosis lab of potato in three types of water 1 osmosis lab investigation1 general purpose: the general purpose of this lab is to investigate the effect that a solution has on a livingcell. This website and its content is subject to our terms and conditions tes global ltd is registered in england (company no 02017289) with its registered office at 26 red lion square london wc1r 4hq.
Results gained in the experiment indicate the increase in potato tuber cell's mass when placing samples in sucrose solutions of concentrations between 000 ─ 500 mol dm-3 (in the experiment, mean increase in mass of the sample was 007 g and 342% when placed in sucrose solution of concentration 000 mol dm-3 ) 500 mol dm-3 is the. Percentage of change in mass is decreasing thusly we can conclude thatthe difference of the initial from the final and as it gets greater thatmeans the mass of the potato changed massivelyaccording to the osmosis theory as the concentration of the sucrosesolution increases the particle's water potential increases and becomeshigher than the. Osmosis is the process by which water moves from a higherconcentration through a selectively permeable membrane therefore, water will moves inside the potato strips to make it turgid because. Potatoes must contain sucrose molecules due to the conclusion of this lab because the potatoes take in water in the distilled water beaker potatoes had a lower water potential and higher solute potential than the distilled water.
The aim/purpose of the investigation are to investigate the effect of sucrose concentration on osmosis in potato tissue, to find out how the concentration of sucrose solution affects the mass of potato and also to find the isotonic point of potato. In this experiment this is the change of mass of the potato when it is placed in different strengths of sugar solution variables description: independant variables the independant variable is plotted on the x axis and is what you choose to change in the experiment. As there is more osmosis in the potato cells using tongs to remove the potato tubes from the nacl and finally receiving help from another student so the tubes can be taken out faster and in a more similar time.
Potential of potato cells at room temperature and ambient pressure by placing cores of potato tissue in sucrose solutions of different concentrations and measuri ng the net movement of water in each case. If you put a potato into an isotonic solution it should remain the same weight, but if you have more solute in the water than in the potato, water from the potato will be drawn out (like salting a snail or tomato), but if the water has less solute than the potato, it will be drawn into the potato, making it heavier. To investigate the effect of varying the concentration of sucrose solutions and to see if osmosis occurs in potato cells research/definition: osmosis is the diffusion of a solvent through a semi permeable membrane from a region of low solute concentration to a region of high solute concentration. Factors affecting osmosis in potato tissue - sample essay we will connect the calibrated gas syringe to the side armed flask we will place the strip of magnesium ribbon into the side armed flask at the same time as putting in the bung and starting the stop clock.