BI-483
Diffusion
Biology · Secondary 3 · Medium · Diffusion
Which statement best describes diffusion in the context of red dye spreading out in a beaker of water?
- Water molecules move from high to low concentration through a membrane.
- Dye molecules move randomly but stay in the same region.
- Dye molecules move into regions of lower concentration.
- Dye molecules move only when stirred by a glass rod.
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