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

Minerals are present in the soil in sufficient amounts. Do plants need to adjust the type of solutes that reach the xylem? Which molecules help to adjust this? How do plants regulate the type and quantity of solutes that reach the xylem?

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

Into what do mineral ions enter from the cell walls of the root?

Root endodermis has the ability to actively transport ions $A$ because of $B$. Choose the correct pair.

Why does active transport occur in roots?