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Related Concept Videos

Balancing Redox Equations02:58

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Electrochemistry is the science involved in the interconversion of electrical and chemical reactions. Such reactions are called reduction-oxidation, or redox reactions. These important reactions are defined by changes in oxidation states for one or more reactant elements and include a subset of reactions involving the transfer of electrons between reactant species. Electrochemistry as a field has evolved to yield sufficient insights on the fundamental principles of redox chemistry and multiple...
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Oxidation-reduction or redox reactions involve the transfer of electrons from one molecule or atom to another. When an atom gains an electron, another atom must lose an electron, meaning oxidation and reduction must occur together. Since the redox occurs in pairs, the atom that gets oxidized is also called the reducing agent or reductant, and the atom that is reduced is also called the oxidizing agent or oxidant. A straightforward way to remember the definitions of oxidation and reduction is...
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Redox Reactions01:27

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Redox reactions are vital biochemical processes that underpin energy metabolism in cells. These reactions involve the transfer of electrons between molecules, occurring in tandem as oxidation and reduction. Oxidation refers to the loss of electrons, while reduction denotes their gain. This coupling ensures the seamless flow of electrons through metabolic pathways. For example, in bacterial metabolism, glucose undergoes oxidation to carbon dioxide, while oxygen is simultaneously reduced to...
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The respiratory system is crucial for exchanging oxygen (O2) and carbon dioxide (CO2) between the atmosphere and the bloodstream, maintaining the body's balance. Beyond gas exchange, it helps regulate acid-base balance, purify inhaled air, and enable vocalization.
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A reduction-oxidation reaction is commonly called a redox reaction. In a redox reaction, electrons are transferred from one species to another rather than being shared between or among atoms. The reducing agent or reductant is the species that loses electrons and gets oxidized in the process. The species that gains electrons and gets reduced in the process is the oxidizing agent or oxidant. Redox reactions are represented as two separate equations called half-reactions, where one equation...
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Redox titration is a chemical analysis technique used to determine the concentration of an unknown substance by measuring the electron transfer in a redox (reduction-oxidation) reaction. The process involves gradually adding a titrant with a known concentration of an oxidizing or reducing agent, to the analyte, the solution with an unknown concentration, until reaching the endpoint, which indicates the completion of the reaction between the two substances. Ensuring the analyte is in a single...
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Functional Imaging with Reinforcement, Eyetracking, and Physiological Monitoring
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The Redox architecture of physiological function.

Jerome Santolini1, Stephen A Wootton2, Alan A Jackson2

  • 1Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ Paris-Sud, Universite Paris-Saclay, F-91198, Gif-sur-Yvette Cedex, France.

Current Opinion in Physiology
|August 17, 2019
PubMed
Summary
This summary is machine-generated.

Organisms adapt to changing needs via coordinated processes. This study introduces the Redox Interactome framework, revealing how electron exchange (Redox) synchronizes cellular and physiological functions for adaptation and survival.

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Area of Science:

  • Biochemistry
  • Cell Biology
  • Physiology

Background:

  • Organisms must adapt to metabolic and environmental changes for survival.
  • Coordination of cellular and physiological functions during adaptation is not fully understood.
  • Mammalian adaptation mechanisms require further elucidation.

Purpose of the Study:

  • To propose a conceptual framework for understanding adaptive coordination.
  • To explain the role of electron exchange (Redox) in biological synchronization.
  • To define the 'Redox Interactome' as a unifying concept.

Main Methods:

  • Conceptual analysis of Redox processes throughout biological evolution.
  • Framework development based on electron exchange mechanisms.
  • Integration of intra/intercellular and inter-organ exchange processes.

Main Results:

  • Redox processes are fundamental to biological complexification and synchronization.
  • A multi-layered system of synchronized exchange processes has evolved.
  • The 'Redox Interactome' connects regulatory elements across biological levels.

Conclusions:

  • The Redox Interactome framework explains Redox signaling's role in integration.
  • This framework offers insights into metabolism, bioenergetics, and inflammation convergence.
  • It may elucidate the link between Redox stress and human diseases.