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Obligation refers to:
Magnesium
A chemical element with the symbol Mg, essential for living cells, playing a critical role in over 300 enzymatic reactions, including energy production.
Manganese
A chemical element with the symbol Mn and atomic number 25, known for its importance in metabolism and enzyme function in living organisms.
Phosphorus
Phosphorus is a chemical element with symbol P, essential for life as part of the DNA and RNA structure, energy transfer molecules like ATP, and in bones and teeth.
Photosynthetic Pigments
Photosynthetic pigments are molecules present in plants and certain bacteria that absorb specific wavelengths of light and capture energy for photosynthesis.
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