Osmosis causes water influx leading to cell burst

Steps:

• Blood cells in pure water experience hypotonic conditions where external solute concentration is lower than inside cells.
• Water moves into cells via osmosis to equalize concentrations.
• Influx increases internal pressure, causing membrane rupture (hemolysis).
• Statements 2 (higher internal solute concentration) and 3 (membrane pressure limit) explain this process.

Why C is correct:

• C combines 2 and 3, directly tying osmosis (definition: diffusion of water across semi-permeable membrane from low to high solute concentration) to hemolysis mechanism.

Why the others are wrong:

• A includes 1 (water entry) but pairs with irrelevant 3; misses key solute driver.
• B pairs 1 with 4 (likely incorrect, e.g., no osmosis involvement).
• D pairs 2 with 4, omitting pressure explanation.

Final answer: C