Which statement about concentration gradients is FALSE?
1 Molecules diffuse down the concentration gradient.
2 Molecules move from a region of high concentration to a region of lower concentration.
3 Facilitated diffusion enables molecules to move against the concentration gradient.
4 It is the difference in the concentration of a substance from one location to another.
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Which statement about concentration gradients is FALSE?
1 Molecules diffuse down the concentration...
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