Diffusion is always from areas of greater to areas of lesser concentration.?
True or False and why?
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It is true. The because is the solution is seeking equilibrium. Nature likes uniformity as is witnessed by air circulation from areas of high pressure to areas of low pressure.
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TRUE – Diffusion is an example of passive transport, which does not require the use of energy, as opposed to the other movement, active transport, which requires the use of energy. Passive transport moves substances from an area of higher concentration to lower concentration, again not requiring energy (kind of like a car going downhill- it will just roll even without the gas being pressed). Active transport (of which diffusion is NOT part of) uses energy (referring back to my previous example, the car going uphill) to move particles and substances across a concentration gradient.
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Put food coloring in water – you can make it spread out, but good luck making it concentrated again.
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True
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