Life is thermodynamically far from equilibrium... ...and chemical reactions proceed from a disequilibrium state toward equilibrium... Life can exist as such because the downhill (exergonic reactions - release free energy) of molecular degradation, which move toward equilibrium are slower than the uphill (endergonic - energy requiring) reactions... exergonic reactions are slower than
endergonic reactions. |
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ex: hydrolysis
reactions are
slower, due to the high activation energy needed, while condensation reactions are faster, due to lower activation energies. thus complex molecules may exist in a metastable state for extended periods of time (Life). |
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