The innermost layer of the cortex of a plant root is the:

Name: The innermost layer of the cortex of a plant root is the:
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The innermost layer of the cortex of a plant root is called the endodermis. It forms a boundary between the cortex and the vascular tissue, and it regulates the flow of water and nutrients into the plant by controlling what can pass through the Casparian strip, composed of suberin, a waxy substance that prevents water from entering between the endodermal cells.

The Innermost Layer of the Cortex of a Plant Root