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Concentration Of Sucrose In Potatoes

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To conclude, in this experiment, we set out to find how the concentration of sucrose affects the cell of a potato. The results that I got from the entire class’s data and my group’s data both indicated one thing. They show that as the amount of sucrose concentration increases by g/ml, the change between the final and the initial mass decreased. The percentage change in mass for the first 3 concentrations were positive because of the concentration of solute in the raw potato. The mass increase in a potato strip was higher when there wasn’t any sucrose in the solvent. This is because of osmosis. Since sugar molecules are pretty big they cannot cross the semipermeable membrane of the potato. Therefore, the solutes in the potatoes remained the …show more content…

Since vegetables such as potato is made up of plant tissues which are made up by a group of cells, the cell wall becoming less rigid made the potato strip soft and weigh less because of the loss of water. The cells become plasmolyzed which means that the cell shrunk due to the lack of water molecules but more solute.This is an example of a hypertonic solution. If the potato strips were placed in a solution with 11 g/ml of sucrose then it would’ve reached an equilibrium where the concentration, both in and out of the membrane is equal. This would make the cells go through the isotonic solution and the mass of potato wouldn’t have changed. Going back to my hypothesis, I predicted that as the amount of sucrose raise the mass of the potatoes will fall because the potato will have less solute inside of its cells compared to the outside of the membrane and go through a hypertonic solution. My hypothesis was supported and it seems like my reasonings were accurate as well because according to the data the dissolvent of a lot of sucrose in the water did affect the potato strips by decreasing it’s it’s final

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