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

Question : Minerals are present in the soil in sufficient amounts. Do

1.	Question : Minerals are present in the soil in sufficient amounts. Do plants need to adjust the types of solutes that reach the xylem? Which molecules help to adjust this? How do plants regulate the type and quantity of solutes that reach xylem?
Answer» Solution :Adjustment of solutes occur by:(i) By active absorption of minerals. (ii) XYLEM parenchyma also takes PART in xylem loading. It bears pump and ion channels. (iii) Endodermis bears passage cells for the entrance of minerals into xylem. (IV) EASILY mobilised elements are phosphorus, sulphur, nitrogen and POTASSIUM.