What essential role does the root endodermis | vedclass

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(B) In plants,minerals are absorbed from the soil through both active and passive transport mechanisms.Once these minerals reach the root endodermis,t

Vedclass · Accepted Answer

It acts as a control point,allowing only specific solutes to pass into the xylem.

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(B) In plants,minerals are absorbed from the soil through both active and passive transport mechanisms.Once these minerals reach the root endodermis,they encounter the Casparian strip,which is composed of suberin.Because of this suberin layer,the endodermal cells act as a selective barrier or a 'check point'.The transport proteins present in the plasma membranes of these endodermal cells regulate the quantity and types of solutes that are allowed to pass into the xylem,ensuring that the plant selectively absorbs necessary nutrients.

What essential role does the root endodermis play during mineral absorption in plants?

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