BI-484
Osmosis
Biology · Secondary 3 · Hard · Osmosis
A student places a strip of beetroot in distilled water and another identical strip in a concentrated salt solution for 30 minutes. After this, the strip in salt solution becomes soft and limp while the one in distilled water becomes firm. Which statement best explains the change in the strip placed in salt solution?
- Water enters the cells by osmosis, making them turgid.
- Water leaves the cells by osmosis, causing them to become plasmolysed.
- Salt enters the cells by diffusion, increasing their volume.
- Salt leaves the cells by diffusion, decreasing their volume.
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