Biological calorimetry and the thermodynamics of the origination and evolution of life

Autor:	Lee D. Hansen, Edwin H. Battley, Richard S. Criddle
Rok vydání:	2009
Předmět:	Chemistry General Chemical Engineering Enthalpy Thermodynamics General Chemistry Calorimetry Ion Gibbs free energy symbols.namesake Spontaneous process Abiogenesis symbols Entropy (arrow of time) Living matter
Zdroj:	Pure and Applied Chemistry. 81:1843-1855
ISSN:	1365-3075 0033-4545
DOI:	10.1351/pac-con-08-09-09
Popis:	Calorimetric measurements on biological systems from small molecules to whole organisms lead to a new conception of the nature of live matter that has profound consequences for our understanding of biology. The data show that the differences in Gibbs energy (ΔG) and enthalpy (ΔH) are near zero or negative and the difference in entropy (ΔS) is near zero between a random mixture of molecules and live matter of the same composition. A constant input of energy is required to maintain ion gradients, ATP production, and the other functions of living matter, but because cells are organized in a spontaneous process, no energy input is required to maintain the structure or organization of cells. Thus, the origin of life and evolution of complex life forms occurs by thermodynamically spontaneous processes, carbon-based life should be common throughout the universe, and because there is no energy cost, evolution can occur relatively rapidly.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::610459bedcef955603279898aeef127b https://doi.org/10.1351/pac-con-08-09-09 Zobrazit plný text záznamu Plný text ve formátu PDF