Re: Temperature Clues
michael.goodrich_at_gmail.com
Date: 02/23/05
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Date: Wed, 23 Feb 2005 16:47:47 -0500 (EST)
TomHendricks474@cs.com wrote:
> The rates of biological processes increase between
> 2 and 4 times for each 10C rise in temperature throughout the
> physiological range. Thus if the origin of life is dependent on
> the rate of biological processes, and a temperature near
> the high end of liquid water is in all other ways supportive of
> the origin of life: then
> life is most likely to start in an environment
> with temperatures around 100C.
> Also as the earth cooled, life would have to adapt to the slowing
> rate of biological processes.
>
> AND
> Because enzyme functions only when they assume the proper shape,
> and too hot may open that structure or unfold the enzyme, while
> too cold and it may close up, preventing substates from binding
> properly - then this suggests that enzymes are in that
> goldilocks zone - not too hot and not too cold - and thus are
> adapted to earth's heat cycle which in turn is driven by
> the Sun's heat cycle.
> Thus I suggest that ultimately enzymes are adapted to the
> sun's heat cycle.
>
> Comment?
What about the deleterious effects of entropic considerations at
elevated temperatures for origin-of-life?
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