The whole process of absorption of minerals may be two types -
(i) Active Absorption of minerals
(ii) Passive Absorption of minerals
Active Absorption of the mineral is absorbed when the cell sap in plant put large quantities of minerals ion against the concentration gradient like as in a plant the cell sap of the root cells have potassium ions and phosphate ions who is thousand or hundred times greater than in the soil where the plant was growing. It is called active absorption because it require disbursement of metabolic energy. Whereas passive absorption of minerals occurs when the concentration of minerals is higher in the outer solution than the cell sap of the root cells. The minerals absorbed according to the concentration gradient by the simple process of diffusion, this is called passive absorption of minerals because it does not require disbursement of metabolic energy.
