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Nature & Animals

Which risk increases when endodermal Casparian strips malfunction?

A)Unfiltered soil toxins enter xylem
B)Phloem sap loss increases rapidly
C)Carbon fixation rates sharply decrease
D)Stomata close under water strain

💡 Explanation

A malfunctioning Casparian strip allows apoplastic transport to bypass control because the suberin deposits prevent filtered water uptake; therefore unfiltered toxins contaminate the plant's vascular system, rather than symplastic water selection occurring first with its required filtration process.

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