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Question
The deficiencies of micronutrients, not only affects growth of plants but also vital function, 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?
The deficiencies of micronutrients, not only affects growth of plants but also vital function, 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?
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Solution
The correct option is A Cu, Mn, Fe
Copper is part of plastocyanin protein in photosynthetic electron flow. In oxidative phosphorylation the terminal enzyme, cytochrome oxidase, which transfers electrons to water contains copper. Iron is part of heme of cytochrome proteins used by both respiratory and photosynthetic electron transport chains. Manganese is required for photolysis of water and for activity of superoxide dismutase enzyme in mitochondrial electron transport system. This enzyme scavenges superoxide radicals.
Copper is part of plastocyanin protein in photosynthetic electron flow. In oxidative phosphorylation the terminal enzyme, cytochrome oxidase, which transfers electrons to water contains copper. Iron is part of heme of cytochrome proteins used by both respiratory and photosynthetic electron transport chains.
Manganese is required for photolysis of water and for activity of superoxide dismutase enzyme in mitochondrial electron transport system. This enzyme scavenges superoxide radicals.
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