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Transportation that does require the input of energy
Transportation that does not require the input of energy
A membrane that allows some molecules to cross freely but excludes others
A membrane that allows a substance to pass through it is said to be
A membrane that will not allow a substance to pass through is said to be
The difference in a solution between a region of high density and one of lower density
A gradient in concentration of a solute as a function of distance through a solution is called
A state of balance between continuing processes.
A difference in the net charge between two regions
The combination of electrical concentration gradient.
A relationship that involves rate of diffusion, surface area, concentration gradient, and membrane permeability. The diffusion rate is directly related when surface area, the concentration gradient, or the membrane permeability increases and is indirectly related to membrane thickness.
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