BI-1708
Osmosis
Biology · Secondary 4 · Hard · Osmosis
During an investigation on osmosis, identical potato cylinders are placed in three solutions for 30 minutes:
• distilled water
• 0.3 mol/dm³ salt solution
• 0.6 mol/dm³ salt solution
Afterwards, one cylinder increases in length, one stays the same, and one decreases in length. Which row correctly matches the observations?
• distilled water
• 0.3 mol/dm³ salt solution
• 0.6 mol/dm³ salt solution
Afterwards, one cylinder increases in length, one stays the same, and one decreases in length. Which row correctly matches the observations?
- distilled water: increases; 0.3 mol/dm³: same; 0.6 mol/dm³: decreases
- distilled water: decreases; 0.3 mol/dm³: increases; 0.6 mol/dm³: same
- distilled water: same; 0.3 mol/dm³: decreases; 0.6 mol/dm³: increases
- distilled water: increases; 0.3 mol/dm³: decreases; 0.6 mol/dm³: same
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