The Effect of Different Strength of Salt Solutions on Potato Cells Through Osmosis

The effect of salt solution of different strength on the penetration of potato cells Studies to understand how different salt solutions influence potato cells by infiltration. Objective My aim was to investigate the effect of different concentrations of salt concentration on potato cells under penetration. Introduction In this experiment, a potato cylinder of the same size is immersed in salt solutions of various concentrations. Then I will observe the rate of change of mass over time.

If you add potato slices to a high concentration salt solution (hypertonic), infiltration is very effective. The water from the inside of the potatoes is removed from the potato cells into the salt solution, whereby the potato cells lose the inflation pressure. The higher the concentration of the salt solution, the greater the difference in size and weight of the potato slice after separation of the plasm. Penetration is very detrimental to organisms, especially organisms without cell walls. For example, when saltwater fish (whose cells are isotonic with seawater) are placed in fresh water, the cells will take up and dissolve excess water, and the fish will die. Another example of harmful penetration is the use of salt to kill slurs and snails.

Invasion occurs between the potato and the solution. When potatoes are placed in 0% saline (distilled water), water molecules from the distilled water diffuse through the cell membrane of potato cells and enter the vacuole. This will cause the cells to inflate. So these potato tubers are hard when I touch it. Excess water molecules in the vacuoles enhance the quality of the potato tubers. When potato tubers are in 5% salt solution, they do not change as much as other potato tubers in other solutions. They are about the same length, but their mass is reduced the same as other potato tubers that lost water. This is because the salt content of potatoes is less than 5% and the salt water is about 4%. Because the cells are approximately isotonic with the solution and therefore do not need to spread out, so much penetration does not occur.

I predict there is penetration between potatoes and solutions. I think that the length and quality of potato tubers in distilled water will increase, but the quality and length of potato tubers in 100% saline will decrease. Somewhere between the two solutions, there is a salt concentration of potato tubers. There are several reasons why I made the above predictions. I learned about intrusions from previous experiments, and I know that it is a special case of diffusion. The water molecules pass through the partially permeable membrane. In this experiment, a part of the permeable membrane becomes a potato tubular cell membrane and the salt concentration of the potato tubers is examined. I know that water molecules move from high concentration to low concentration when infiltration occurs.