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← Nature & AnimalsWhich consequence results when excessive manganese accumulates in plant tissues?
A)Reduced xylem diameter diminishes water transport
B)Impaired root pressure elevates nutrient deficiency
C)Disrupted proton gradient inhibits ATP synthesis
D)Increased transpiration causes irreversible plasmolysis✓
💡 Explanation
Excess manganese catalyses the production of reactive oxygen species, disrupting cellular membranes via lipid peroxidation. Increased transpiration rates intensify this localized toxicity because high fluxes exacerbate accumulation, therefore causing plasmolysis rather than changes to xylem diameter or ATP synthesis.
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