| Column-$I$ (Element) | Column-$II$ (Function) |
|---|---|
| $A$. Calcium | $I$. Required for ionic balance |
| $B$. Boron | $II$. Essential for constitution of nucleic acid |
| $C$. Phosphorus | $III$. Required for absorption of calcium |
| $D$. Chlorine | $IV$. Required to activate respiratory enzyme |
| $E$. Manganese | $V$. Required for synthesis of mitotic spindle |
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| Column $I$ | Column $II$ |
|---|---|
| $(a)$ Manganese | $(p)$ For $O_2$ evolution |
| $(b)$ Chlorine | $(q)$ Required for thyroid gland development |
| $(c)$ Phosphorus | $(r)$ High concentration in mitochondria |
| $(d)$ Iodine | $(s)$ Component of nucleic acids |
| Column-$I$ | Column-$II$ |
| $(A)$ Found in some amino acids | $(1)$ $Mg$ |
| $(B)$ Required for photolysis of water | $(2)$ $I$ |
| $(C)$ Not important for plants | $(3)$ $S$ |
| $(D)$ Structural component of chlorophyll | $(4)$ $Mn$ |
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