When solutes flow from an area of higher concentration to an area of lower concentration until equilibrium is reached, given that pressures on either side of the membrane are equal, the movement of the solute across the membrane does so by:
a. filtration c. diffusion
b. osmosis d. transference
C
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A Incorrect: Filtration is the movement of a solute based on the force exerted by the weight of the solution. The fluid containing the solute will move from an area of greater pressure to an area of lesser pressure.
B Incorrect: Osmosis is the movement of water across a semipermeable membrane from a solution that has a lower solute concentration to one that has a higher solute concentration.
C Correct: When solutes flow from an area of higher concentration to an area of lower concentration until equilibrium is reached, given that pressures on either side of the membrane are equal, the movement of the solute across the membrane does so by diffusion.
D Incorrect: Transference is not related to the movement of fluids or solutes.
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