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DavidDvorkin

(19,479 posts)
Thu Dec 20, 2012, 02:03 PM Dec 2012

Origin of life emerged from cell membrane bioenergetics [View all]

A coherent pathway which starts from no more than rocks, water and carbon dioxide and leads to the emergence of the strange bio-energetic properties of living cells, has been traced for the first time in a major hypothesis paper in Cell this week.

At the origin of life the first protocells must have needed a vast amount of energy to drive their metabolism and replication, as enzymes that catalyse very specific reactions were yet to evolve. Most energy flux must have simply dissipated without use.

So where did it all that energy come from on the early Earth, and how did it get focused into driving the organic chemistry required for life?


http://www.eurekalert.org/pub_releases/2012-12/ucl-ool121912.php



This should be the biggest news item of the day.
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Interesting, Sir The Magistrate Dec 2012 #1
That's why it's crucial to keep your membranes intact. postulater Dec 2012 #2
A rare chemistry indeed Eddie Haskell Dec 2012 #3
Here at least AldoLeopold Dec 2012 #5
Not necessarily RomneyLies Dec 2012 #6
Good point. DavidDvorkin Dec 2012 #9
So far we've not found one ... Eddie Haskell Dec 2012 #10
We have no clue where life began RomneyLies Dec 2012 #12
It's possible Eddie Haskell Dec 2012 #13
A testable hypothesis exboyfil Dec 2012 #4
I favor Stuart Kauffman's proposal that the catalytic cycles evolved first phantom power Dec 2012 #7
Cool. Or, more accurately, hot. Warren DeMontague Dec 2012 #8
mind, blown. JaneyVee Dec 2012 #11
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