The two subunits of ribosome remain united at a critical ion level of
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Copper
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Manganese
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Manganese
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calcium
C.
Manganese
Magnesium is required in leaves, growing areas of root and stem protein synthesis hence, withdrawn from ageing. It is a constituent of chlorophyll, middle lamella, and connects with phosphate transfer in respiration, binding of ribosomes and DNA and RNA synthesis.
Manganese activates enzymes of respiration, photosynthesis and nitrogen metabolism performing oxidation, reduction decarboxylation. photolysis of water etc.
Copper is an activator of plastocyanin cytochrome oxidase, RuBP carboxylase and many other enzymes. It functions in electron transfer, maintenance of carbohydrate/nitrogen balance, chlorophyll synthesis etc.
Calcium is a constituent of middle lamella, an activator of enzymes connected with chromosome formation and many aspects of metabolism.
