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Question
Which of the following element is most mobile in plant metabolism?
Which of the following element is most mobile in plant metabolism?
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Solution
The correct option is B Phosphorus
Calcium is present in cell wall as calcium pectate, it is tightly bound to the middle lamella. Carbon is a framework mineral and is tightly bound through covalent bonds in biomolecules and forms basic framework of plant body. Similarly magnesium is present in tightly bound form in chlorophyll. Phosphorous is relatively mobile. It is immobile when present in nucleic acids but other than nucleic acids phosphorous is mobile and participates in reversible phosphorylation reactions of ADP to generate ATP.
Calcium is present in cell wall as calcium pectate, it is tightly bound to the middle lamella.
Carbon is a framework mineral and is tightly bound through covalent bonds in biomolecules and forms basic framework of plant body.
Similarly magnesium is present in tightly bound form in chlorophyll.
Phosphorous is relatively mobile. It is immobile when present in nucleic acids but other than nucleic acids phosphorous is mobile and participates in reversible phosphorylation reactions of ADP to generate ATP.
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