This will ensure that it is a fair test throughout. 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. This would make the graphs clearer and easier to notice any trends or patterns.
Free Essays Must Be Free. This lab gave us the opportunity to explore osmosis and see how different types of cells are affected by various solute concentrations.
Have the students measure the lengths and diameters of the potato cylinders before and after soaking them in the saline solutions for half an hour. 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.
We recommend that this experiment be repeated by others in order to validate its results. Since potatoes already contain sugar, less water will diffuse out of the potato placed in sugar water.
Lab 2 placed potato slices into the various glucose concentrations and determined the mass of the slices before and after overnight immersion. This is called plasmolysis. Diffusion is the process by which molecules intermingle in random motion as a result of their kinetic energy.
During my preliminary test I also found that leaving the potato tuber in the test tube for 24 hours was not long enough to ensure that the process of osmosis was complete. 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. The others decreased in mass. Reliability Fair testing is essential in all investigations.
The others decreased in mass. You can use potatoes to set up osmosis experiments for students of all ages and levels. The average mass change percentage was The other 3 lost weight, caused by the hypertonic solutions with higher glucose concentrations.
Methods This study was conducted in Mrs. 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.
I have also made sure that the first solution is distilled water, the second a concentration of 0. Since potatoes already contain sugar, less water will diffuse out of the potato placed in sugar water.
This led to Lab 2, where potatoes were placed into each of the six solutions with different glucose concentrations. If this experiment is not a fair test, i will obtain incorrect results, which could lead us to the wrong conclusions as they are not providing a true representation of the data at hand.
The potatoes need to be the same breed and of a similar age because if a potato is old compared to another its water content could be lower. The same can be said for osmosis, until the levels on either side of the membrane are equal. This means that the mass of the potato piece will increase and the potato will feel turgid.
"Experiment to investigate the effect of osmosis in potatoes" A GCSE experiment looking at the effects of the concentration of sucrose solution on osmosis in potato tubers.
Experiment to Investigate Osmosis in Potatoes The aim of this experiment is to investigate the movement of water in and out of plant cells.
Nov 06, · The effects of plant hormones and sucrose (Suc) on potato (Solanum tuberosum L.) tuberization were studied using in vitro cultured single-node turnonepoundintoonemillion.com-inducing (high Suc) and -noninducing (low Suc or high Suc plus gibberellin [GA]) media were tested.
In this experiment this is the change of mass of the potato when it is placed in different strengths of sugar solution. Variables Description: Independent Variables The independent variable is plotted on the x axis and is what you choose to change in the experiment. Effect Of Sucrose Solution On Osmosis In Potato Tubers.
Effect of Sucrose Solution on Osmosis Aim: The aim of the experiment is to show how varying the concentration of sucrose solution affects osmosis by changing different molar solutions of sucrose and water and how it affects the potato.
The potato tubers gained/ loss length, the molarity increases the sugar solution becomes more concentrated, and more concentrated than inside the cell.
At. Essay on The Effects of Sucrose Molarity on Cells in the Stem Tuber of a Potato - The Effects of Sucrose Molarity on Cells in the Stem Tuber of a Potato Planning In this investigation I am trying to find out what molarity of sucrose solution is same as the molarity of sucrose in the cells of a potato.The effects of sugar solutions on a potato tuber an experiment