| Column-$I$ | Column-$II$ |
| $(a)$ Nitrogen | $(1)$ Activation of some enzymes |
| $(b)$ Potassium | $(2)$ For the work done by $F_1$ |
| $(c)$ Phosphorus | $(3)$ Ionic balance |
| $(d)$ Calcium | $(4)$ In structure of vitamin |
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| Column-$I$ | Column-$II$ |
|---|---|
| $P$. $Mg^{2+}$ | $I$. Rubisco and $PEPcase$ |
| $Q$. $Zn^{2+}$ | $II$. Alcohol dehydrogenase |
| $R$. $Mo$ | $III$. Nitrogenase |
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