During Osmosis, water moves from regions of

• A. From Areas Of High Solute Concentration To Low Solute Concentration
• B. Only Through Aquaporins
• C. Only In Plant Cells
• D. From Areas Of Low Solute Concentration To High Solute Concentration

Answer: (D)

Osmosis is the movement of water across a semipermeable membrane driven by differences in solute concentrations on the two sides. Water moves from the side with lower solute concentration (higher water potential) to the side with higher solute concentration (lower water potential) to help equalize the concentrations. This is a passive process and does not require energy. Water can cross the membrane through aquaporin channels or, to a lesser extent, through the lipids themselves, so it isn’t limited to aquaporins. Osmosis happens in all cells with semipermeable membranes, not just plant cells. Therefore, the direction described—toward higher solute concentration—is the correct description of how osmosis works.