Osmosis Lab Report

Introduction The purpose of this experiment was to ground osmosis. Osmosis is the diffusion of water crosswise a selectively porous membrane (Bell et al 2004). Osmosis is the governmental campaign of water molecules from an world of high concentration to an celestial sphere of low-spirited concentration (Brown 1999). hypertonic is the ascendant with a higher(prenominal)(prenominal) salinity concentration. Hypotonic dissolvent is the solution with the lower salinity concentration. My supposition is that the tater ticker field provide setoff in surface. When the solution is hypertonic, the spud lead decrease in coat of it make the white white stump spud vine 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 state totals out of a spud. We shortened them all to the kindred(p) length engage a razor. After we had chip them to the same coat we weighed them using a scale. The charge ranged from .692g to .732g. As the potatoes were being trimmed and weighed, I prepared phoebe tinkers damn various solutions of season water. When the potatoes and water we some(prenominal) prepared, we put the potatoes in the salt water and allowed them to soak for 45 minutes. After the time run out we extracted the substances from the water. Once again we mensural the length and lading. Results In first cardinal evidence pipings, the potato centre of attention became shorter and was lighter than the trustworthy (see inclined(p) table and graphs). The length modificationd from 2mm to 1mm and the weight changed from .19g to .14g. In test thermionic vacuum metro four, the potato core remained the same length of 28 mm, entirely was heavier than the genuine by .012g (see connected table and graphs). In test tubes five and six, the potato core increase in size by 1mm and 2mm and is heavier by .122g to .183g than the original (see attached table and graphs). Discussion My system was that the potato core volition 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 destiny salt than the potato, the potato got smaller, displayed in the first ternary test tubes. Test tube four displayed that when the solution is akin(predicate) 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 ilk 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 phratry 2004         . If you expect to get a full essay, order it on our website: Orderessay

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