Question

Osmosis is a function of which of the following factors?

• A. Temperature
• B. Pressure
• C. The number of solute molecules in the solutions on the two sides of the selectively permeable membrane
• D. All of the above

Answer 1

The correct option is D All of the above

Osmosis is the movement of a solvent across a semipermeable membrane toward a higher concentration of solute (lower concentration of solvent). In biological systems, the solvent is typically water, but osmosis can occur in other liquids, supercritical liquids, and even gases. When a cell is submerged in water, the water molecules pass through the cell membrane from an area of low solute concentration to high solute concentration. For example, if the cell is submerged in saltwater, water molecules move out of the cell. If a cell is submerged in freshwater, water molecules move into the cell. So, the correct option is "D" (All of the above).