Which part in roots has transport proteins that are control points, where a plant adjust the quantity and types of solutes that reach the xylem?

Cortical cells

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Endodermal cells

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Epidermal cells

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Root hairs

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Solution

The correct option is B Endodermal cells
Endodermal cells in roots have transport proteins that are control points, where a plant can adjust the quantity and types of solutes that reach the xylem. They allow some solutes to cross the membrane but due to presence of suberin layer prevents other solute to cross the membrane.

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Similar questions

Identify the correct statements related to the uptake of mineral ions

A. The membrane proteins pump ions from soil into the cytoplasm of epidermal cells

B. Transport proteins of endodermal cells act as control points, which adjust the quantity and type of solutes reaching the xylem

C. Root endoderm due to its suberin layer, can not transport ions

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