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During osmosis, flow of water through a semipermeable membrane is

1. from both sides of semipermeable membrane with equal flow rates
2. from both sides of semipermeable membrane with unequal flow rates
3. from solution having lower concentration only
4. from solution having higher concentration only

Correct answer: from both sides of semipermeable membrane with unequal flow rates

Solution

During osmosis, water flows from the side with lower solute concentration (higher water potential) to the side with higher solute concentration (lower water potential), but the flow rates are unequal, favoring the latter.

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