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← Nature & AnimalsWhich pressure-driven mechanism causes nutrient redistribution in phloem?
A)Source-to-sink translocation process✓
B)Cohesion-tension xylem flow
C)Active unloading at the sink
D)Capillary action in xylem vessels
💡 Explanation
Source-to-sink translocation process causes flow; higher turgor pressure at the source pushes phloem sap towards sinks because of osmosis and pressure differences. Therefore, nutrient redistribution occurs via bulk flow, rather than cohesion or capillary pressure as a factor.
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