| Column $I$ | Column $II$ |
| $(a)$ Boron | $(p)$ For $CO_2$ transport |
| $(b)$ Copper | $(q)$ Essential for nitrogen fixation |
| $(c)$ Molybdenum | $(r)$ Essential for sugar translocation in plants |
| $(d)$ Chlorine | $(s)$ Essential for chlorophyll synthesis in plants |
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| Column-$I$ | Column-$II$ |
| $P$. Phosphorus | $I$. Splitting of water to liberate oxygen during photosynthesis |
| $Q$. Potassium | $II$. Constituent of cell membranes and all nucleotides |
| $R$. Magnesium | $III$. In more abundant quantities in the meristematic tissue,buds,leaves,and root tips |
| $S$. Manganese | $IV$. Constituent of the ring structure of chlorophyll and helps to maintain the ribosome structure |
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