Diffusion And Osmosis Experiment

My prediction is that as the concentration increases, the potato cell will lose more weight. This is because of the osmosis of water particles from the potato cell cytoplasm to the solution, resulting in a loss of weight. As the concentration decreases, the potato will lose less weight until a certain point where the osmosis of particles in and out of the potato cells will be equal. I also predict that as the salt

The purpose of this lab was to determine the effect of solutions with different salt concentrations on the mass of a potato slice. The data collected and analyzed in this experiment seems to support the hypothesis, which stated that the mass of a potato slice would decrease, as the salt concentration increased. This can be evidenced in Graph 1 where the downward slope of the data shows a negative correlation between salt concentration and average percent change.

3) The mass of the potato cells would decrease, since the NaCl is a higher concentration than theH20 molecules inside the potato cells. So, the potato’s cells will evacuate and go into the surroundings, making it shrivel. This is known as a hypotonic solution.

Osmosis is a process in which molecules in a solvent pass across a semipermeable membrane into a more concentrated solution from a less concentrated one, attempting to make both sides isotonic or equal to each other. Isotonic can also be described as an equilibrium, where there is no net movement of the molecules. Osmosis is relevant in everyday life whether the general population is aware of it or not. It could be as simple as sitting in the pool too long and getting pruney fingers or as complex as a cholera infection in the intestinal cells that does not allow the intestinal cells

Van’t Hoff’s Law suggests that the osmotic potential of a cell is proportional to the concentration of solute particles in a solution. The purpose of this experiment was to determine if there are any differences between the osmolalities, the no-weight-changes of osmolalities, and the water potentials of potato cores in different solutions of different solutes. The percent weight change of the potato cores was calculated through a “change in weight” method. The potato core’s weight was measured before and after they were put into different concentrations of a solute for 1.5 hours. In our experiment, there were no significant differences from the osmotic potentials of our results and the osmotic potentials of other scientists work. Ending with chi square values of 2.17 and 2.71, and p values of 0.256 and 0.337, concluding that there is no difference in water potentials of potato cores in different solutions of different solutes at varying concentrations.

if the potato is placed in water then the potato will swell or be soggy if the potato is then placed in a higher salt water concentration then the potato will decrease its volume and mass if it's please in salt water solution then it would shrink the volume and mass when you when you place the beaker it determines the temperature the mass volume even speed on how the potatoes are dissolving or

In the ‘Adrift and Ahirst Lab’ slices of potatoes were used to represent our body cells. There was two types of solutions, a freshwater solution and a saltwater (10% salt) solution. Knowing this we wanted to discover which solution would cause the potato to change the most in terms of circumference and mass.

Osmosis is described as the movement of water molecules (solvent) from high to low concentrations (concentration gradient) via a semipermeable membrane, until equilibrium is established. This movement of water is unquestionably vital in living organisms; for instance, osmoregulation in the human body is what allows homeostasis to take place. Without rigid control over the process of osmosis, cells would die.

If I was asked to place the potato strips in a solution that would cause them to neither gain or lose mass I would have to place the potato strips back in the 0.2 M sucrose solution because in the experiment the potato strips that were placed in the 0.2 M solution for twenty four hours did not gain or lose weight. The solution was isotonic meaning the extracellular fluid (the solution) had the same osmolarity as the fluid inside the cell.

It was also hypothesized that all of the solutions were hypotonic since the weight would increase meaning the weight on the inside of the potato is less than that of the solution on the outside therefore the solution would move inside the potato. To test our hypothesis we tested the osmolarity of the potatoes, A specimen cup was rinsed through deionized water before being labeled 0M, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 and filled to a depth of 5 cm with NaCl solution to the same molarity. As a safety precaution we were told to immediately clean up any spilled solutions. Next using a mandolin we cut seven different potato slices (if the potato was difficult to cut use a scalpel to cut it in half) place each slice in a cup. Once cut and placed the slices should be covered with a petri dish to prevent desiccation.

If you put tap water instead of the salt solution, we know that the mass of the potato will increase, we all know that happens because the water actually has a more fragile concentration than the potato (due to the water moving into the “spongy” membrane because of osmosis.) I believe if the potato is in a higher concentrated (hypertonic) solution then the mass will decrease because the potato has less concentration than the actual solution so, the water will go through the “spongy” membrane into an even stronger solution.

Diffusion is the spreading of particles from an area of high concentration to an area of low concentration. Diffusion can also take place in cells. It does not need or require energy from the cell in order to for diffusion to occur (Carnagie & Bruno, eds., 2001). That is why diffusion is considered to be passive transport, because it doesn’t

Based on the experiment result, it supports my hypothesis that as the concentration of sucrose increases the mass of potato decrease due to its temper is that water particles go high concentration to low concentration. The consequence, when 4M sucrose solution has a potato, then the solution will make the potato to shrinks because water molecules from potato go to 4M sucrose solution due to osmosis and this is diffusion of water particles. In opposite way, mass of potato increased when it was put in distilled water because distilled water is higher solution of water particles than potato so the molecules from water entered into the potato. According to these, a feature of diffusion moves high to low concentration, water molecules passed to

As sugar solute is added to water, they turn hypertonic, which ultimately form hypotonic potato cores (Bchir et al., 2013). Water molecules pass through the cell membrane of the potato cells into the solutions they are placed in and with the potato core and solution, they reach equilibrium. Therefore, the core’s mass will decrease because of the movement of water from the potato towards the solution.

all the tubas on the paper towel in the order. I wrote on these towels