Diffusing Glucose Molecules

**** Sorry, but you need to have a java-enabled browser (such as Netscape or Internet Explorer) to view this demo. Molecules in aqueous solution will diffuse down their concentration gradients, until they finally reach a uniform concentration or are prevented by a barrier such as a cellular membrane.

This can be seen in the simulation, where the purple dots represent glucose molecules in aqueous solution. Initially, all the glucose is distributed in the left half of the solution, but watch how rapidly the molecules spread out to reach a fairly uniform concentration.

Note the buttons to pause the simulation and to restart it from the beginning.
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This page last updated 17/IX/98 by Robert S. Stephenson