BI-1731
Osmosis
Biology · Secondary 4 · Medium · Osmosis
A student sets up an experiment with a visking tubing bag filled with distilled water and places it in a beaker of 15% salt solution. After 30 minutes, the mass of the bag decreases. Which statement explains this result?
- Water moved out of the bag by osmosis into the salt solution
- Salt ions diffused into the bag, decreasing its mass
- Water moved into the bag by osmosis from the salt solution
- Salt ions were actively transported out of the bag
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