[Terrapreta] photosynthesis

[Sean K. Barry]

Hi Brian,

The energy flux of photons from sunlight hitting the Earth's surface is about ~1000 Watts per square meter.  This is not enough energy to move nuclear particles like protons.  There is not even enough "ionizing radiation" to remove an electron from a hydrogen-to-oxygen bond in sunshine.   Chemical reactions are about shuffling electrons around between the electron orbitals of atoms and the bonds in molecules.  Splitting water molecules occurs as a result of moving the electrons out of the bonds, not about removing two hydrogen protons from a water molecule.

Regards,

SKB
  ----- Original Message ----- 
  From: Brian Hans<mailto:bhans at earthmimic.com> 
  To: Terrapreta at bioenergylists.org<mailto:Terrapreta at bioenergylists.org> 
  Sent: Thursday, September 20, 2007 6:54 AM
  Subject: Re: [Terrapreta] photosynthesis


  Im not sure what you are saying here Sean. H2O is infact split thru photosynthsis in the light cycle<http://en.wikipedia.org/wiki/Light-dependent_reaction>  into 2 H's and 1 O. 

  ADP is not a catalyst, its an energy carrier. 

  Brian Hans

  "Sean K. Barry" <sean.barry at juno.com<mailto:sean.barry at juno.com>> wrote:
    Sunshine at the Earth's surface does not pop any protons (hydrogen nucleii) off of any molecules, hydrogen dioxide or otherwise.  To strip a hydrogen atom off of a water molecule requires more energy density than 1kW/m^2 of photon energy.  Or, it requires catalysts like adenosine diphosphate (ADP).  Chemical reactions, making and breaking of chemical bonds just changes the way atoms share electrons.  A water molecule H2O, still has 18 protons and 18 electrons.  Ionized molecules lose or gain electrons, but they do NOT lose or gain protons and neutrons.
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