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Difference Between Osmosis And Diffusion

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Osmosis and diffusion have similar concepts but have their own individual processes. Osmosis is the process in which there is transport of a solvent through a semipermeable membrane that separates two solutions of contrasting solute concentration. During osmosis, the solvent moves from the solution that is lower in concentration of solute to the solution that is higher in concentration of solute, eventually reaching an equilibrium (Johnston). Diffusion is the movement of matter from one point to another by random molecular motions. The rate of diffusion of a substance is proportional to the concentration gradient of that substance (Leaist). In the experiment there were 4 different test groups: the control (tap water in tap water), 20% fructose in tap water, 40% fructose in tap water, and tap water in 20% fructose. …show more content…

If we place tap water in the dialysis tubing and submerge the dialysis tube into a beaker filled with tap water, then this will remain the control group and stay in an isotonic state. However, if we place 20% fructose in the dialysis tubing and place the tubing into tap water, then the dialysis tube should gain mass as the water diffuses the 20% fructose concluding it is a hypotonic solution. Then if we place 40% fructose in dialysis tubing and submerge it in tap water, then this dialysis tube will gain the most mass because it needs more osmosis also meaning it is a hypotonic solution. Finally, if we place tap water in dialysis tubing and submerge it in a 20% fructose solvent, then the tubing will lose mass confirming it as a hypertonic

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When using a hypertonic and hypotonic solutions they can be shown in many different ways one way we showed this is putting an egg in corn syrup. The purpose of this lab is that students can observe and predict what is happening to an egg when you put it in hypertonic and hypotonic environments. The environments we put the egg in are vinegar, corn syrup, and water with food coloring. Using these materials we learned about osmosis, hypertonic environments, hypotonic environments, and passive transport. The purpose of this lab was to learn and get a better understanding of what is happening in the movement of molecules.

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