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NEET Biology Mineral Nutrition In Plants Question Bank Micro Nutrients

  • question_answer
    The deficiencies of micronutrients, not only affects growth of plants but also vital functions such as photosynthetic and mitochondrial electron flow. Among the list given below, which group of three elements shall affect most, both photosynthetic and mitochondrial electron transport   [CBSE PMT 2005]

    A) \[Cu,\,Mn,\,Fe\]

    B) \[Co,\,Ni,\,Mo\]

    C) \[Mn,\,Co,\,Ca\]

    D) \[Ca,\,K,\,Na\]

    Correct Answer: A

    Solution :

    Cu - Copper takes part in electron transport as plastocyanin (between PS II and PSI) and cytochrome to oxygen. Mg - Manganese is activator of a number of enzymes like reductases, oxidases, etc. taking part in respiration and photosynthesis. Fe - Iron is component of \[{{e}^{-}}\] transferring bio-molecules like cytochromes and ferredoxin. They are essential components of photosynthesis.


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