Investigating the Concentration of Plant Cell Sap Using Potato Tuber Cells

Investigation of the concentration of plant cell liquor using potato tuber cells Calculation of the concentration of plant cell liquor using potato tuber cells The first important thing is to pay attention to safety throughout the experiment. Please be careful when using acids / kitchen knives (and all easy things like not running). Another important aspect before starting was to make the experiments fair testing.

The purpose of this experiment was to investigate water transfer to and from plant cells. Cells selected for research are taken from potato tubers. First, let me explain about permeability. Permeation is the passage of water from the high moisture concentration zone through the semipermeable membrane to the low moisture concentration zone. Three important things are included in this definition. A semipermeable membrane is a layer of very thin material that blocks something while hindering others. The cell membrane is semipermeable. They allow small molecules such as oxygen, water, and amino acids to pass through but do not allow larger molecules such as sucrose, starch, and protein to pass through. The area of ​​high concentration water is a very dilute solution such as sucrose or pure water. In each case there is a lot of water: high concentration water. The low moisture concentration range is opposite to the above.

Essay.com / "Experimental Study of the Influence of Penetration Potato" GCSE experiment to study the influence of sucrose solution concentration on the penetration of potato tubers

"Experimental Study on the Influence of Penetration into Potatoes" GCSE Experiment to Study the Effect of Sucrose Solution Concentration on Penetration of Potato Tubers

In this survey, we aimed to examine the concentration of potato cells. Potato slices can be placed in different concentrations of sugar and concentrations that are isotonic with potato cell juice can be found. With such a solution, a piece of potato does not increase or decrease the weight. My hypothesis is that the isotonic point lies between 80 and 120 g / l. This is a preliminary experiment to show where the isotonic point is, so I will predict this. I think 50 g / l potato chips will swell and increase weight. The tip concentration is lower than water and absorbs water. As a result, water molecules are the same as inside the chip. Potato chips of 90 g / l have a high concentration of sugar on the outside of the chips, so they lose sagging weight. Since the chip releases moisture, the moisture concentration is equal to the moisture concentration inside the chip.

In the following experiments, we examine the glucose concentration in potato cell fluids before and after soaking the potato sample in the concentrated glucose solution. The stronger the glucose solution, the greater the potato piece weighs and I predict the potato will become heavier when placed in a more dilute glucose solution. This is due to penetration, that is, movement of water molecules from a high concentration region to a low concentration region. Because the cell membrane is water permeable, if the intracellular glucose concentration is higher than the concentration of the solution, the water molecules enter the solution through the cell wall and increase the weight of the potato.