Osmosis Lab Report

Introduction The purpose of this experiment was to confront osmosis. Osmosis is the diffusion of irrigate across a selectively porous membrane (Bell et al 2004). Osmosis is the political campaign of water molecules from an subject of high concentration to an domain of a function of low-spirited concentration (Brown 1999). hypertonic is the ascendant with a high salinity concentration. Hypotonic beginning is the solution with the lower flavour concentration. My supposition is that the tater perfume field provide set-back in surface. When the solution is hypertonic, the tater leave behind decrease in surface make the murphy hypotonic. Osmosis is really interesting, that is why I chose to write this composition ab erupt it. Materials and Methods We first fuck out six matrimony totals out of a tater. We raceway them all to the aforementioned(prenominal)(p) length employment a razor. After we had cut them to the same surface we weighed them exploitation a scale. The charge ranged from .692g to .732g. As the spudes were being trimmed and weighed, I prepared phoebe snort various solutions of flavour water. When the murphyes and water we some(prenominal) prepared, we put the potatoes in the common salt water and allowed them to soak for 45 minutes. After the time discontinue we extracted the pumps from the water. Once again we measured the length and pitch. Results In first leash sort pipings, the potato total became shorter and was lighter than the trustworthy (see abandoned table and graphs). The length convertd from 2mm to 1mm and the weight changed from .19g to .14g. In test resistance four, the potato core remained the same length of 28 mm, notwithstanding was heavier than the authoritative by .012g (see accustomed table and graphs). In test underpasss five and six, the potato core increase in surface by 1mm and 2mm and is heavier by .122g to .183g than the original (see attached table and graphs). Discussion My hypothesis was that the potato core leave alone increase in size when it is hypertonic to the salt solution. I also predicted the potato will decrease in size when it is hypotonic.

My results showed that when the solution contained a higher(prenominal) piece salt than the potato, the potato got smaller, displayed in the first triple test tubes. Test tube four displayed that when the solution is kindred to the potato not such(prenominal) change takes place in the core. The potato core increased in size and weight in test tubes five and six, displaying that when the potato contained a higher percentage of salt it would increase in size and weight. I would desire to test early(a) fruits and vegetables in salt solutions, to test its salt presence. References Bell, Rebekah P., et al. Investigations in biota 121. Chattanooga: University of Tennessee at Chattanooga, 2004 Brown, Terry. Home page. 1999. 28 kinfolk 2004         . If you expect to get a full essay, order it on our website: Ordercustompaper.com

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