A water molecule could move all the way through a plant from soil to root to leaf to air and pass through a living cell only once. This living cell would be a part of which structure? A. a guard cell B. the root epidermis C. the endodermis D. the root cortex



Answer :

The correct answer is option C: the endodermis

A water molecule could move all the way through a plant from soil to root to leaf to air and pass through a living cell only once. This living cell would be a part of the endodermis.

In land plants, the endodermis is the innermost sheet of the plants that are neighboring the vascular bundle.

An endodermis is a dense closed packing of the living cells with the wrap of radial cells that guard them against the inflow of water,

Radial cells are infused with hydrophobic substances that limit the flow of water into the layer.

In short, the endodermis serves as the boundary between the stele and the cortex.

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