Potato Osmosis Lab Report
Abstract The experiment was carried out to investigate at which point the potato has reached its isotonic environment. From the results, when the concentration increase to 0.3M, the mass of the potato slices decreased by -3.26%. We can conclude we see that as we increased the sucrose concentration it was a decrease in the percent change.
Introduction
All cells have membranes that are selectively permeable. In other words, they allow certain things in and certain substances are not allowed to enter the inside of the cell. Osmosis is the process of water movement across the membranes from an area of high water concentration to an area of low water concentration to reach a sense of equilibrium. Diffusion is what enables osmosis to occur. …show more content…
They were each cut in small, thin segments with a razor blade and then rinsed. Each sample was then weighed with a balance to get the initial mass recorded.
Six disposable cups were labeled and filled with one of the 100 mL sucrose solutions (0.0M, 0.1M, 0.2M, 0.3M, 0.4M and 0.5M). One sample of potato segments was added to each of the sucrose solutions in the disposable cups. The potatoes were left to soak for one hour.
After the one hour was up, the potatoes were removed and blotted with a paper towels. Finally they were weighed again for the final mass to be recorded and from there the percent change in mass was calculated for each sample.
Results
Figure 1: As the sucrose concentration increased, the % change in the mass decreased. As you look to 0.0M sucrose concentration, the mass of the potato slices increased by 9.02%. As the sucrose concentration increased to 0.1M, the mass of the potatoes increased by 8.77%. As the sucrose concentration increased to 0.2M, the mass of the potatoes increased by 4.12%. When the concentration increase to 0.3M, the mass of the potato slices decreased by -3.26%. At 0.4M sucrose concentration, the mass of the potato slices decreased significantly by 29.22%. At 0.5M sucrose …show more content…
When you look from 0.0M to 0.1M sucrose concentration, the percent change in mass decreased from 9.02% to 8.77% which had no significant difference between these points. From concentration 0.1M to 0.2M there was a decrease by 4.02% and a significant difference between the two points. These three sucrose concentrations are found to be in a hypnotic solution where water is diffused in the cell which the potato is gaining mass. Now looking at sucrose concentrations 0.2M to 0.3M, the percent change in mass decrease from 4.02% to -3.26%. This causes to have a significant difference between the two points. We increase from 0.3M to 0.4M we have a dramatically decrease from -3.26% to -29.22%. You can conclude from these points that there is a significant difference. As we look at 0.4M to 0.5M we have an increase in a percent change in mass from -29.22% to -16.51%. These three sucrose concentrations are found to be in a hypertonic solution where water is diffused out the cell which the potato is losing mass. At the sucrose concentrations 0.2M and 0.3M we reached the point where the potato is at an isotonic environment, it would be between 4.02% to
Introduction
All cells have membranes that are selectively permeable. In other words, they allow certain things in and certain substances are not allowed to enter the inside of the cell. Osmosis is the process of water movement across the membranes from an area of high water concentration to an area of low water concentration to reach a sense of equilibrium. Diffusion is what enables osmosis to occur. …show more content…
They were each cut in small, thin segments with a razor blade and then rinsed. Each sample was then weighed with a balance to get the initial mass recorded.
Six disposable cups were labeled and filled with one of the 100 mL sucrose solutions (0.0M, 0.1M, 0.2M, 0.3M, 0.4M and 0.5M). One sample of potato segments was added to each of the sucrose solutions in the disposable cups. The potatoes were left to soak for one hour.
After the one hour was up, the potatoes were removed and blotted with a paper towels. Finally they were weighed again for the final mass to be recorded and from there the percent change in mass was calculated for each sample.
Results
Figure 1: As the sucrose concentration increased, the % change in the mass decreased. As you look to 0.0M sucrose concentration, the mass of the potato slices increased by 9.02%. As the sucrose concentration increased to 0.1M, the mass of the potatoes increased by 8.77%. As the sucrose concentration increased to 0.2M, the mass of the potatoes increased by 4.12%. When the concentration increase to 0.3M, the mass of the potato slices decreased by -3.26%. At 0.4M sucrose concentration, the mass of the potato slices decreased significantly by 29.22%. At 0.5M sucrose …show more content…
When you look from 0.0M to 0.1M sucrose concentration, the percent change in mass decreased from 9.02% to 8.77% which had no significant difference between these points. From concentration 0.1M to 0.2M there was a decrease by 4.02% and a significant difference between the two points. These three sucrose concentrations are found to be in a hypnotic solution where water is diffused in the cell which the potato is gaining mass. Now looking at sucrose concentrations 0.2M to 0.3M, the percent change in mass decrease from 4.02% to -3.26%. This causes to have a significant difference between the two points. We increase from 0.3M to 0.4M we have a dramatically decrease from -3.26% to -29.22%. You can conclude from these points that there is a significant difference. As we look at 0.4M to 0.5M we have an increase in a percent change in mass from -29.22% to -16.51%. These three sucrose concentrations are found to be in a hypertonic solution where water is diffused out the cell which the potato is losing mass. At the sucrose concentrations 0.2M and 0.3M we reached the point where the potato is at an isotonic environment, it would be between 4.02% to