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How did LUCA make a living? Chemiosmosis in the origin of life
 

Summary: How did LUCA make a living? Chemiosmosis
in the origin of life
Nick Lane,1
John F. Allen,2
and William Martin3
*
1
Department of Genetics, Evolution and Environment, University College London, London, UK
2
School of Biological and Chemical Sciences, Queen Mary University of London, London, UK
3
Institut fušr Botanik III Heinrich-Heine-Universitašt, Dušsseldorf, Germany
Despite thermodynamic, bioenergetic and phylogenetic
failings, the 81-year-old concept of primordial soup
remains central to mainstream thinking on the origin
of life. But soup is homogeneous in pH and redox poten-
tial, and so has no capacity for energy coupling by
chemiosmosis. Thermodynamic constraints make chemi-
osmosis strictly necessary for carbon and energy
metabolism in all free-living chemotrophs, and presum-

  

Source: Allen, John F. - School of Biological and Chemical Sciences, Queen Mary, University of London

 

Collections: Renewable Energy; Biology and Medicine