Match List I with List II: List I List II A. Iron I. Synthesis of auxin B. Zinc II. Component of nitrate reductase C. Boron III. Activator of catalase D. Molybdenum IV. Cell elongation and differentiation Choose the

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Correct answer: D. A-III, B-I, C-IV, D-II

Iron It is an importantconstituent of proteins involved in the transfer of electrons like ferredoxin and cytochromes. It activates catalase enzyme, and is essential for the formation of chlorophyll. Zinc It activates various enzymes, especially carboxylases. It is also needed in the synthesis of auxin. Boron Boron is required for uptake and utilisation of Ca 2+ , membrane functioning, pollen germination, cell elongation, cell differentiation and carbohydrate translocation. Molybdenum It is a component of several enzymes, including nitrogenase and nitrate reductase both of which participate in nitrogen metabolism.

Match List I with List II: List I List II A. Iron I. Synthesis of...

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List I	List II
A. Iron	I. Synthesis of auxin
B. Zinc	II. Component of nitrate reductase
C. Boron	III. Activator of catalase
D. Molybdenum	IV. Cell elongation and differentiation

Iron	It is an importantconstituent of proteins involved in the transfer of electrons like ferredoxin and cytochromes. It activates catalase enzyme, and is essential for the formation of chlorophyll.
Zinc	It activates various enzymes, especially carboxylases. It is also needed in the synthesis of auxin.
Boron	Boron is required for uptake and utilisation of Ca²⁺, membrane functioning, pollen germination, cell elongation, cell differentiation and carbohydrate translocation.
Molybdenum	It is a component of several enzymes, including nitrogenase and nitrate reductase both of which participate in nitrogen metabolism.