BI-564
Diffusion
Biology · Secondary 3 · Hard · Diffusion
A student places a strip of beetroot into distilled water at 5°C and another identical strip into distilled water at 35°C. After 10 minutes, more red pigment is seen in the water at 35°C. Which statement best explains this result?
- Diffusion of pigment is faster at 35°C because molecules move more quickly.
- Diffusion of pigment is slower at 35°C because molecules move less.
- Osmosis only occurs at 35°C, so pigment moves out faster.
- Active transport of pigment into the water happens only at 5°C.
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