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WEAK ION SOUND TURBULENCE AND ISOTOPE ANOMALY
WEAK ION SOUND TURBULENCE AND ISOTOPE ANOMALY

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... Figure 10.24 The steps of the Calvin-Benson cycle. Carbons enter the cycle as carbon dioxide. The enzyme rubisco combines each CO2 with a five-carbon compound called RuBP. The resulting six-carbon compound quickly splits into two three-carbon PGA molecules. Each PGA gains a phosphate from ATP and h ...
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Magnesium in biology



Magnesium is an essential element in biological systems. Magnesium occurs typically as the Mg2+ ion. It is an essential mineral nutrient (i.e., element) for life and is present in every cell type in every organism. For example, ATP (adenosine triphosphate), the main source of energy in cells, must be bound to a magnesium ion in order to be biologically active. What is called ATP is often actually Mg-ATP. As such, magnesium plays a role in the stability of all polyphosphate compounds in the cells, including those associated with the synthesis of DNA and RNA.Over 300 enzymes require the presence of magnesium ions for their catalytic action, including all enzymes utilizing or synthesizing ATP, or those that use other nucleotides to synthesize DNA and RNA.In plants, magnesium is necessary for synthesis of chlorophyll and photosynthesis.
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