Biologyhard · Past Paper

What is the primary function of the 'Endodermis' in a plant root?

APhotosynthesis
BRegulation of water flow into the xylem
CProduction of new cells
DStorage of sugar

✓ Correct Answer: B — Regulation of water flow into the xylem

The endodermis acts as a checkpoint for minerals/water entering the vascular cylinder via the Casparian strip.

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