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← Nature & AnimalsWhich outcome reduces xylem water transport efficiency when embolism expands air bubbles?
A)Decreased mesophyll cell turgor✓
B)Increased leaf boundary layer
C)Reduced osmotic root pressure
D)Enhanced stomatal conductance gain
💡 Explanation
Decreased mesophyll cell turgor occurs because embolism disrupts the cohesion-tension mechanism in xylem, inhibiting water delivery to leaf cells; therefore turgor is reduced, rather than stomatal conductance. Root pressure would also become insignificant.
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