II. Method
Concentration Gradients
Experimet1: In this portion of the experiment, a beaker was obtained with 50mL of water, and it was sat until the water stopped moving. A small crystal of potassium permanganate dye was gently put into the water at the center of the beaker. Then the observation was recorded for the next 5 minutes.
Experimet2: In this portion of the experiment, a beaker was obtained with 50mL of water in room temperature, and a teabag was placed into a beaker of water. The observation was made for the next 5 minutes. Replacing the water in room temperature to warm water did the same procedure. The following observation was made.
Diffusion, Dialysis, and Osmosis
Effects of Osmosis on Potato Cells:
Experiment1
In this portion …show more content…
Other groups were assigned with glucose and sucrose. Diluting 1 M of sodium chloride with water made six solutions. The six solutions ranging from 0M to 1M were prepared. These 6 solutions composed of 50 mL of solutions with different concentration of NaCl. The uses of concentrations of NaCl were 0M, 0.2M, 0.4M, 0.6M, 0.8M, and 1M. Then 6 equally sized and shaped cylinders of potato were obtained and weighed initially. Then these 6 potatoes were put inside of the sodium chloride solutions. After 45 minutes, the 6 potatoes were taken out to get dry, and they were weighed. The observations of the potato changes in length or firmness were …show more content…
Each dialysis tube was used to obtain 5mL solutions. Protein, starch, glucose, fructose, lactose, maltose, NaCl, and MgCl2 were the solutions that were put inside of each dialysis tubing. After each dialysis tubing was obtained the same amount, they were put on each of the cylinder that was prepared. These graduated cylinders were sat for about 60 minutes. After that, the dialysis tubes were taken out from the graduated cylinder. The solutions inside of graduated cylinder were used to perform Benedict’s test, IKI test, and biuret test. For the solutions that had NaCl, and MgCl2 dialysis tubes were used chloride ions and magnesium ions methods to detect. In this experiment, the independent variable was the different amount of solutions; the dependent variable was whether or not these solutions would pass through. The controlled variables were the same amount of solutes and
Concentration Gradients
Experimet1: In this portion of the experiment, a beaker was obtained with 50mL of water, and it was sat until the water stopped moving. A small crystal of potassium permanganate dye was gently put into the water at the center of the beaker. Then the observation was recorded for the next 5 minutes.
Experimet2: In this portion of the experiment, a beaker was obtained with 50mL of water in room temperature, and a teabag was placed into a beaker of water. The observation was made for the next 5 minutes. Replacing the water in room temperature to warm water did the same procedure. The following observation was made.
Diffusion, Dialysis, and Osmosis
Effects of Osmosis on Potato Cells:
Experiment1
In this portion …show more content…
Other groups were assigned with glucose and sucrose. Diluting 1 M of sodium chloride with water made six solutions. The six solutions ranging from 0M to 1M were prepared. These 6 solutions composed of 50 mL of solutions with different concentration of NaCl. The uses of concentrations of NaCl were 0M, 0.2M, 0.4M, 0.6M, 0.8M, and 1M. Then 6 equally sized and shaped cylinders of potato were obtained and weighed initially. Then these 6 potatoes were put inside of the sodium chloride solutions. After 45 minutes, the 6 potatoes were taken out to get dry, and they were weighed. The observations of the potato changes in length or firmness were …show more content…
Each dialysis tube was used to obtain 5mL solutions. Protein, starch, glucose, fructose, lactose, maltose, NaCl, and MgCl2 were the solutions that were put inside of each dialysis tubing. After each dialysis tubing was obtained the same amount, they were put on each of the cylinder that was prepared. These graduated cylinders were sat for about 60 minutes. After that, the dialysis tubes were taken out from the graduated cylinder. The solutions inside of graduated cylinder were used to perform Benedict’s test, IKI test, and biuret test. For the solutions that had NaCl, and MgCl2 dialysis tubes were used chloride ions and magnesium ions methods to detect. In this experiment, the independent variable was the different amount of solutions; the dependent variable was whether or not these solutions would pass through. The controlled variables were the same amount of solutes and