Biology for IGCSE & O level - Transport In Plants (Section 4 - No. 44)
What is the significance of the Casparian strip in the root endodermis?
It facilitates the movement of sugars.
It prevents water from entering the xylem.
It forces water and minerals to pass through endodermal cells, controlling their entry into the xylem.
It strengthens the root.
Explanation
The Casparian strip forces water and minerals to pass through the endodermal cells, allowing the plant to control the substances that enter the xylem.
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