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Question

The deficiencies of micronutrients, not only affect growth of plants but also vital functions such as photosynthesis and mitochondrial electron flow. Among the list given below, which group of three elements shall affect most both photosynthesis and mitochondrial electron transport?

A
Cu, Mn, Fe
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B
Co, Ni, Mo
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C
Mn, Co, Ca
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D
Ca, K, Na
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Solution

The correct option is A Cu, Mn, Fe
Copper, manganese and iron are important mineral constituents of proteins like cytochromes and flavoproteins, which take part in electron transport reactions of photosynthesis and mitochondrial electron flow.

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