Question

____ is the process by which solvent flows through a semipermeable membrane from a dilute (hypotonic) solution to a concentrated (hypertonic) solution.
options:
tonicity
dialysis
dilution
osmosis

Explanation:

To solve this, we analyze each option:

• Tonicity refers to the relative solute concentration of solutions, not the process of solvent flow.
• Dialysis involves the movement of solutes (not just solvent) across a semipermeable membrane, often for purification.
• Dilution is the process of reducing solute concentration by adding solvent, not related to semipermeable membrane - mediated solvent flow.
• Osmosis is defined as the process by which solvent (usually water) flows through a semipermeable membrane from a region of lower solute concentration (hypotonic/dilute) to higher solute concentration (hypertonic/concentrated).

Answer:

Osmosis