For Lab 1 the solution with a 1. Overall, we were able to apply the information we learned over the course of the past week on osmosis to conduct this experiment.
Data Discussion In Lab 1, where bags of different solute concentrations were tested, the results showed that higher solute concentrations gained more mass. Since a hypertonic solution has a high concentration of solvent, it causes the cells inside the potato to release water, allowing them to shrivel up and lose mass Wootton and Campbell.
The same can be said for osmosis, until the levels on either side of the membrane are equal. Osmosis was examined by noting the change in mass of potato slices before and after overnight immersion in varying solute concentrates.
We worked in a lab space with a scale, 6 beakers, and a laptop to record data with. Results Overall, the potatoes placed in hypotonic solutions made significant mass gains 0. Our measurement may have been inaccurate as well, since the scales we used required constant resetting zeroing outand this could have resulted in some inconsistencies.
In Lab 1, diffusion was exhibited by placing solutions of various glucose concentrations into dialysis tubing and measuring the mass of the solutions after allowing the glucose particles to spread without energy put into the system.
Potatoes in solutions of lower concentration gained more mass due to particles moving from an area of higher concentration to lower concentration. Methods This study was conducted in Mrs.
The potatoes placed in hypertonic solutions lost mass 0. For Lab 2, the potato in a 1. Through diffusion, particles spread until equilibrium or a uniform distribution has been reached. Diffusion, Osmosis, and Movement Across a Membrane.
This led to Lab 2, where potatoes were placed into each of the six solutions with different glucose concentrations. Introduction Through this lab we explore diffusion and osmosis using solutions of varying sucrose concentrations and potato samplings.
Osmosis is the diffusion of particles through a semipermeable membrane from an area of higher concentration to an area of lower concentration Nave, While we expected that all the masses would increase regardless of the glucose in the solution, only 3 of the potatoes grew in weight.
However, the rest of the potatoes actually lost mass, averaging at about 0. This lab gave us the opportunity to explore osmosis and see how different types of cells are affected by various solute concentrations.
We were able to experiment and discover that the potato slices immersed in the lower glucose solutions, yielded to a higher mass than the ones immersed in the higher glucose solution due to the particles moving from an area of higher concentration to a lower one. However, the results yielded from the experiment were not consistent with our groups initial expectations.
Muller, The main objective of the lab was to demonstrate the movement of glucose through water. These were the solutions we decided had lower solute concentrations, because the hypotonic solution causes the cells in the potato to swell up and increase the size and water content Wootton.
Both processes do not use energy, but rather are caused by the spontaneous movement of particles. By using potatoes as a model, we were able to note the change in mass of each potato slice before and after the overnight immersion.
Diffusion is the process by which molecules intermingle in random motion as a result of their kinetic energy. Osmosis and its Effects on Potatoes in Glucose Solutions Mod 19 Abstract Osmosis of water of different molar concentrations was examined by using potatoes as a model.
Although we learned that our original hypothesis was incorrect, we were able to understand why the particles moved from a higher concentration to a lower in the lower glucose solutions and concluded that the lower glucose solution yielded a greater mass than the higher glucose solution.
Each beaker held a different solution with varying amounts of glucose in it, and each solution surrounded a 1-inch piece of potato inside the beaker. We recommend that this experiment be repeated by others in order to validate its results.
Lab 2 placed potato slices into the various glucose concentrations and determined the mass of the slices before and after overnight immersion.
The potatoes were left overnight in their beakers, and were removed and weighed 24 hours later. The prediction was that the solutions with higher glucose concentrations would gain more mass through osmosis Campbell.
In this second lab, some of the potatoes gained mass at approximately the interval they were expected to, which ended up at about 0. We hypothesized that in both labs the solutions with a larger glucose concentration would gain more mass due to the hypotonic nature of the solutions. Since in the previous lab, mass was gained with every solution, this threw us for a loop for a moment.
However, the results we found, though they were not initially predicted by us, are supported by the tendencies of hypotonic and hypertonic solutions Campbell.The Effect of Solute Concentration on Osmosis in Potatoes AIM: to find out the effect of solute concentration on osmosis in potatoes.
This is to find the equivalent osmotic potential. [IMAGE] PREDICTION: Osmosis is the movement of water particles from a high concentration to a low concentration through a partially permeable membrane. To investigate the effect to the potato cells in the different solute concentration water Essay If there are different types of potatoes, the osmosis that happens to the potato from the sugar water will not be the same.
We will write a custom essay sample on To investigate the effect to the potato cells in the different solute. Sep 11, · Osmosis was examined by noting the change in mass of potato slices before and after overnight immersion in varying solute concentrates.
Potatoes in solutions of lower concentration gained more mass due to particles moving from an area of higher concentration to lower concentration.
Title of investigation: The effect of solute concentration on osmosis in potatoes. Research question: What is the solute concentration of a potato? Hypothesis: Osmosis is the movement of water across the membrane from an area of high concentration to an area of low concentration. 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.
Effect of Solute Concentration on Osmosis in Potato Cells Report Words | 7 Pages. INTRODUCTION Osmosis is the movement of water molecules from high concentration to low concentration through semipermeable membranes, caused by the difference in concentrations on the two sides of a membrane (Rbowen, L.).
It occurs in both animals and plants cells.Download