BI-1746
Osmosis
Biology · Secondary 4 · Medium · Osmosis
A dialysis tubing bag (partially permeable membrane) is filled with dilute sucrose solution and placed in a beaker of concentrated sucrose solution. The membrane is permeable to water but not sucrose.
After 30 minutes, what happens to the mass of the bag and why?
After 30 minutes, what happens to the mass of the bag and why?
- Mass decreases because water leaves the bag by osmosis.
- Mass increases because water enters the bag by osmosis.
- Mass decreases because sucrose diffuses out of the bag.
- Mass stays the same because there is no net movement of water.
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