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La chimie du vivant

Les molcules de la vie. De ces 25, quatre sont particulirement importants :. Carbone (C) : peut former 4 liaisons chimiquesHydrogne (H) : ne forme qu'une liaisonOxygne (O) : peut former 2 liaisonsAzote (N) : peut former 3 liaisons. . La vie utilise environ 25 des 92 lments chimiques prsent

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La chimie du vivant

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