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Nature & Animals

Which outcome reduces nutrient absorption capabilities when a plant’s root cortex air spaces are flooded?

A)Enhanced water transport efficiency
B)Decreased ATP production in root
C)Increased xylem sap concentration
D)Elevated stomatal opening frequency

💡 Explanation

Decreased ATP occurs due to limited oxygen availability, because less aerobic cellular respiration occur within the cortex cells, suppressing the ATP required for active transport of nutrients and inhibiting transport proteins; therefore absorption fails, rather than alternatives that need ATP.

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