U-tube osmosis: sucrose solution and water, before and after

An example figure from the Osmosis and Tonicity generator.

A U-tube with a selectively permeable membrane at the bottom: side A holds 10% sucrose with gray sucrose particles and fewer blue water particles, side B holds pure water, the levels equal, with a water arrow from side B across the membrane to side A; then an arrow to the same U-tube with the level higher on side A and lower on side B — A U-tube split at the bottom by a selectively permeable membrane, with 10% sucrose on side A and pure water on side B, the levels equal at the start. Sucrose can’t cross the membrane, so side A is hypertonic and water moves by osmosis from side B to side A. On the right the level has risen on side A and fallen on side B.

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Answer key

Side A is hypertonic to side B
Net water movement from side B to side A
The level rises on side A

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