What process describes the movement of water toward a crystalloid such as salt or sugar?

What process describes the movement of water toward a crystalloid such as salt or sugar?

• A. Osmosis
• B. Diffusion
• C. Filtration
• D. Active transport

Answer: (A)

Water moves across a semipermeable membrane toward the side with higher solute concentration, such as salt or sugar, to dilute the solution. This solvent movement is osmosis. It’s a passive process driven by the osmotic gradient, not by energy input. Diffusion describes solutes moving from high to low concentration, not the water; filtration is water movement driven by hydrostatic pressure; and active transport requires energy to move substances, not the solvent in this context.

Water moves across a semipermeable membrane toward the side with higher solute concentration, such as salt or sugar, to dilute the solution. This solvent movement is osmosis. It’s a passive process driven by the osmotic gradient, not by energy input. Diffusion describes solutes moving from high to low concentration, not the water; filtration is water movement driven by hydrostatic pressure; and active transport requires energy to move substances, not the solvent in this context.