Biology for IGCSE & O level - Transport In Plants (Section 6 - No. 14)
In the process of water uptake, what creates the water potential gradient that drives water movement into the roots?
The stomata opening and closing
The active transport of mineral ions into the root cells
The evaporation of water from the leaves
The force of gravity.
Explanation
The active transport of mineral ions into the root cells lowers the water potential inside the root cells, driving water uptake by osmosis.
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