BI-873
Root hair cells
Biology · Secondary 3 · Hard · Root hair cells
A student observes that root hair cells have a long, narrow extension and many mitochondria. Which statement explains how these features help the cell take in mineral ions from the soil?
- The long extension reduces surface area so fewer ions enter by diffusion.
- The mitochondria provide energy so ions can be pumped into the cell.
- The long extension stores ions taken in from the soil.
- The mitochondria make ions so the cell does not need soil minerals.
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