| Column-$I$ | Column-$II$ |
| $(1)$ Nitrogen | $(p)$ Formation of mitotic spindle |
| $(2)$ Phosphorus | $(q)$ Protein,vitamins |
| $(3)$ Potassium | $(r)$ Phosphorylation reactions |
| $(4)$ Calcium | $(s)$ Maintain the turgidity of cells |
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