How does water movement occur during osmosis?

Osmosis is the process by which water molecules move across a selectively permeable membrane. This movement is driven by the concentration gradient of solutes on either side of the membrane. Water will naturally move from an area where solute concentration is low (meaning there are fewer solute particles and more free water molecules) to an area where solute concentration is high (more solute particles and fewer free water molecules). This movement occurs to equalize solute concentrations on both sides of the membrane.

In the context of the provided options, the answer indicating that water moves from low solute concentration to high solute concentration accurately describes the mechanism of osmosis, highlighting the passive nature of this process as it seeks equilibrium in solute concentration across the membrane. This fundamental concept is significant in biological systems, as osmotic pressure can influence the movement of fluids in and out of cells, which is crucial for maintaining cell function and overall homeostasis.