The transport of ions up the stem to all parts of the plant is through:

According to which theory are ions absorbed in large quantities along with the absorption of bulk water?

Select the correct option for the Apoplast and Symplast pathways in the mechanism of mineral absorption.
Apoplast and Symplast pathways are respectively:

Mineral ions are taken up by the roots through $......$ transport and water is taken up through $...........$ transport.

$A -$ $A$ plant adjusts the quality and types of solutes that reach the xylem.
$R -$ Transport proteins of endodermal cells are control points.

If the amount of an ion absorbed by a root hair cell at $0^o C$ is $5 \ gm$ and at $20^o C$ is $20 \ gm$,then the amount of this ion absorbed actively should be (in $gm$)