Super-Saturated sol'n of CO2 could drive Kreb's ??

[Widdekind]

Super-Saturated solution of CO2, at high Temperature & Pressure (e.g., deep-sea volcanic vents), could "inject" CO2 into Reverse Citric-Acid Cycle, "driving" it around ??

 

The reverse Citric Acid Cycle incorporates CO2, from the surrounding aqueous medium. So, if that solution was super-saturated, with CO2 -- such as could have occurred, 4.5 Gya, in the earth's early oceans, pressed down by a then-still-super-dense-and-CO2-rich sky -- could CO2, "seeking out" of the super-saturated solution, "flee into" the reverse CAC, and "drive" that anabolic pathway through successive cycles ?

 

Edited June 4, 2011 by Widdekind

[John Cuthber]

The reactions are, in principle, reversible, but the pressures involved would be silly.

[CharonY]

Biolgoically, bacteria that utilize reverse TCA have specialized enzymes (including ATP citrate lyase and two different oxidoreductases) not found in the "normal" TCA-cycle to facilitate the reversal.

Edited June 6, 2011 by CharonY