Translations:Citric acid cycle/50/en: Difference between revisions

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Message definition (Citric acid cycle)
== Evolution ==
It is believed that components of the citric acid cycle were derived from [[anaerobic bacteria]], and that the TCA cycle itself may have evolved more than once. It may even predate biosis: the substrates appear to undergo most of the reactions spontaneously in the presence of [[persulfate]] radicals.  Theoretically, several alternatives to the TCA cycle exist; however, the TCA cycle appears to be the most efficient. If several TCA alternatives had evolved independently, they all appear to have [[convergent evolution|converged]] to the TCA cycle.

Evolution

It is believed that components of the citric acid cycle were derived from anaerobic bacteria, and that the TCA cycle itself may have evolved more than once. It may even predate biosis: the substrates appear to undergo most of the reactions spontaneously in the presence of persulfate radicals. Theoretically, several alternatives to the TCA cycle exist; however, the TCA cycle appears to be the most efficient. If several TCA alternatives had evolved independently, they all appear to have converged to the TCA cycle.