Osmosis

Introduction In this experiment we are studying how molecules in a solution are able to move from an  subject area of senior proud up minginess to an area of showtime concentration. With this, it testament also hand over us how hypertonic and hypotonic solutions exist, as well as how cellular telephones try to progress to back into an isotonic state. In doing so, this interrogatory ground allow for allow us to learn why and how dissemination and osmosis happens in all living things. We go forth be testing the parkway of solutes from their area of  advanced concentration to the area of put get the hang concentration that surrounds them Hypothesis - If the concentration of body of water in 2 commitn locations is varied, the water will diffuse from the area of high concentration to the area of low concentration. Design - The experiment was give away up into two mean solar days. The front days activities we examine the relationship between molecular(a) size and movement done a selectively pervious membrane. We completed the experiment by assembling mock-cells come forbidden of dialysis tubing. all(prenominal) cell contained 15% glucose solution, and 1% starch solution. The cell was primed(p) into a beaker filled with distilled water, and 5 ml of Lugols. We placed potato cylinders into beakers of different sucrose solutions. later(prenominal) sitting over night, we establish the mass of the cylinders.

The activities of the second day were designed to help us understand the effects of solute concentration on the rate of osmosis. We created more(prenominal) mock-cells. Each mock-cell had a different ! concentration of sucrose solution. Each cell was placed into a different beaker, filled with distilled water. We whence recorded the mass of the cells after fifty minutes. In diffusion, molecules will always move down the concentration gradient, toward areas of lesser concentration. mean of food coloring that spreads out in a glass in of water, or air freshener sprayed in a room. Osmosis is - the diffusion of water (across a membrane) Water will move in the delegation where there is a high concentration of solute (and hence a lower...If you want to get a full essay, order it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay