NEET BIOLOGY

Detailed explanation-1: -Calcium is not remobilized from the leaves to the fruits, like potassium, phosphorus and sulphur.

Detailed explanation-2: -Certain nutrients that are a structural component of the plants cannot be remobilised. Calcium is associated with the cell plate in plants and is a structural component in the plant cells. Thus remobilization of calcium does not take place.

Detailed explanation-3: -Nitrogen remobilization is one of the key steps in improving NUE in plants. In cereals, 60%–92% of the requirement of nitrogen during grain-filling is remobilized from the senescing vegetative parts.

Detailed explanation-4: -Calcium contributes to the structural makeup of the plant so cannot be re-mobilized easily and is called immobile element.

Detailed explanation-5: -Calcium is the element in plants which is not mobilised. This is because it is a structural component and hence needs to be localised.