Wet/dry
- From: TomHendricks474@xxxxxx
- Date: Wed, 25 May 2005 12:55:09 -0400 (EDT)
I firmly believe that the sun/heat cycle is the initial
power source for every aspect of life, and that life by def.
is that chemical system that is stable in a sun'heat cycle.
Think of life as a collective we, instead of indie organisms.
(Those who disagree - take the sun out of your scenario
and see how it works - no planet, no uv, no energy, nada)
BUT
is it the UV, the hot/cold, the wet/dry aspect of it - or
all the above? Probably all the above.
Yet note these 3 aspects of Wet/dry.
1.
Condensation reactions (dry) are needed for
sugars to polysacharides
amino acids to protein
nucleiotides to nucleic acid.
and then hydrolysis (wet) tears them apart.
I would think that what is 'sun selected' would ultimately be
that which could build in the dry/heat, yet not be torn apart
in the wet, water part. So the suggestion is that tide pools
might be the solution. I also note that though condensation
reactions seem to be such an obvious part of the origin,
they don't work well in OOL lab experiments. That is frustrating.
2.
The importance of hydrophobic (water hating) vs. hydrophilic
(water loving) amino acids in the makeup of the early genetic code.
(I suggest the original code was the bottom half with the make up
of Purine/N/Purine makeup most likely)
3.
ATP and its dry/wet components.
All three seem so essential to the origin, that it would
seem imperative to have a wet/dry cycle in the process to
life.
But how did it work? What part did the UV, and the day/night
cycle play? What is the proper mix of all three? Is it possible
to recreate the sun/uv/wet-dry mix in a lab experiment?
Comment?
Tom Hendricks
.
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