Osmosis experiment

Numéro d’image : 11709838
Osmosis experiment
Osmosis experiment. Visking tubing being used to demonstrate osmosis. Osmosis is the movement of solvent molecules (such as water) through a semi-permeable membrane to an area of higher solute concentration,until the concentrations are equal on both sides of the membrane. Visking tubing is an artificial semi-permeable membrane that allows smaller molecules like water and glucose to pass through but blocks larger molecules like starch and sucrose. The tubing is filled with a sucrose (sugar) solution (seen here) and then placed in a beaker of water. As the concentration of water molecules is lower in the beaker,there is a net movement of water molecules,by osmosis,from the beaker into the tubing,causing the liquid level in the tube to
Licence : Droits gérés
Crédit: Science Photo Library / Trevor Clifford Photography
Taille de l’image : 3422 px × 5114 px
Model Release : Non requis
Property Release : Non requis
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