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The Cell
Diffusion and Osmosis
4
Biology
12th Grade
10/25/2006

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Term
What is Diffusion
Definition
Diffusion is the movement of particles from higher chemical potential to lower chemical potential.
(A change in concentration levels)
Term
What causes Diffusion?
Definition
Diffusion occurs through termal heat energy causing a constant state of random motion.
Term
What does this mean for the solution?
Definition
if in the solution there is a concentration gradient between the regions of solution than the constant motion will eliminate the cooncentration difference as the molecules spread out.
Term
What is net Diffusion?
Definition
Net Diffusion is a physical process that occurs when ever there is a region of higher to a region of lower concentration until the concentration difference no longer exists.
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