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Entropy within the Cell

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A living cell's primary tasks of obtaining, transforming, and using energy to do work may seem simple. However, the second law of thermodynamics explains why these tasks are harder than they appear. None of the energy transfers in the universe are completely efficient. In every energy transfer, some amount of energy is lost in a form that is unusable. In most cases, this form is heat energy. Thermodynamically, heat energy is defined as the energy transferred from one system to another that...

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Unraveling Entropic Rate Acceleration Induced by Solvent Dynamics in Membrane Enzymes

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Nonequilibrium Entropic Bounds for Darwinian Replicators.

Jordi Piñero^1,2, Ricard Solé^1,2,3

¹ICREA-Complex Systems Lab, Universitat Pompeu Fabra, Doctor Aiguader 88, 08003 Barcelona, Spain.

Entropy (Basel, Switzerland)

|December 3, 2020

Summary

This summary is machine-generated.

This study explores thermodynamic constraints on prebiotic evolution. It reviews replicator types and applies the extended second law of thermodynamics to understand how these systems are limited, guiding future research.

Keywords:

entropy evolution life replicators thermodynamics

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Area of Science:

Origin of Life Studies
Theoretical Biology
Chemical Thermodynamics

Background:

Prebiotic evolution involves Darwinian selection and increasing complexity.
The emergence and selection of replicating entities are key problems.
Kinetic models using replicator equations are common but lack thermodynamic constraints.

Purpose of the Study:

To review the theoretical framework of the extended second law of thermodynamics.
To describe fundamental replicator types: parabolic, Malthusian, and hyperbolic.
To investigate thermodynamic constraints on prebiotic replicators.

Main Methods:

Review of theoretical frameworks for systems far from equilibrium.
Application of the extended second law of thermodynamics.
Analysis of kinetic models for different replicator types.

Main Results:

Identified three fundamental replicator types: parabolic, Malthusian, and hyperbolic.
Demonstrated the application of thermodynamic principles to replicator dynamics.
Highlighted the lack of a general statistical theory for systems far from equilibrium.

Conclusions:

Thermodynamic constraints play a crucial role in prebiotic evolution.
The extended second law of thermodynamics offers a framework for studying these constraints.
Further research is needed to develop comprehensive statistical methods for non-equilibrium systems.