Oxidation Reduction
Oxidation Reduction - Related Videos
03:11
Oxidation-Reduction Reactions
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2020
Oxidation–Reduction Reactions Earth’s atmosphere contains about 20% molecular oxygen, O2, a chemically reactive gas that plays an essential role in the metabolism of aerobic organisms and in many environmental processes that shape the world. The term oxidation was originally used to describe chemical reactions involving O2, but its meaning has evolved to refer to a broad and important reaction class known as oxidation–reduction (redox) reactions. Some redox reactions involve the transfer of...
07:24
Visible-light Induced Reduction of Graphene Oxide Using Plasmonic Nanoparticle
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Cited by 2 •
2015
A simple protocol for the preparation of reduced graphene oxide using visible light and plasmonic nanoparticle is described.
09:20
A Method to Manipulate Surface Tension of a Liquid Metal via Surface Oxidation and Reduction
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Cited by 12 •
2016
We present a method to control the interfacial energy of a liquid metal in an electrolyte via electrochemical deposition (or removal) of a surface oxide layer. This simple method can control the capillary behavior of gallium-based liquid metals by tuning the interfacial energy rapidly, significantly, and reversibly using modest voltages.
01:19
Oxidation and Reduction of Organic Molecules
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2023
Energy production within a cell involves many coordinated chemical pathways. Most of these pathways are combinations of oxidation and reduction reactions, which occur at the same time. An oxidation reaction strips an electron from an atom in a compound, and the addition of this electron to another compound is a reduction reaction. Because oxidation and reduction usually occur together, these pairs of reactions are called redox reactions. The removal of an electron from a molecule, results in a...
12:08
Monitoring the Reductive and Oxidative Half-Reactions of a Flavin-Dependent Monooxygenase using Stopped-Flow Spectrophotometry
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Cited by 12 •
2012
We describe the use of a stopped-flow instrument to investigate both the reductive and oxidative half-reactions of Aspergillus fumigatus siderophore A (SidA), a flavin-dependent monooxygenase. We then show the spectra corresponding to the species in the reaction of SidA and we calculate the rate constants for their formation.
FAQs
These carrier pairs shuttle electrons between reactions, linking electron transfer to cellular energy conversion. Their oxidized forms, NAD+ and FAD, accept electrons and become NADH and FADH2. The reduced carriers can then deliver those electrons to later reactions, including steps associated with the electron transport chain, helping connect metabolic chemistry with ATP production.
Electron loss cannot occur independently of electron gain because transferred electrons must be accepted by another molecule. This pairing allows redox reactions to move electrons through organized metabolic pathways rather than releasing their chemical effects in isolation. In biology, coordinated transfers make energy capture possible and help maintain the flow of reactions that support cellular energy balance.
As electrons move through the electron transport chain, their transfers release energy. The system uses that energy to establish a proton gradient, meaning a difference in proton concentration across a membrane. ATP synthesis then uses this gradient as an energy source, linking the chemical movement of electrons to production of the cell’s usable energy currency.
Both processes use redox transfers to support biological energy conversion, but they operate in different energy-related contexts. Cellular respiration uses electron movement to help generate ATP through the electron transport chain, whereas related redox transfers also power photosynthesis. Comparing them shows how cells and photosynthetic systems use electron chemistry to manage energy in distinct ways.
Analyzing these reactions helps researchers trace how biological systems capture, transfer, and use energy. Redox pathways connect molecular electron movement with metabolism and ATP production, so changes in those transfers can affect overall energy balance. This perspective is useful for explaining how cells coordinate energy-releasing and energy-consuming processes.
Redox research provides a framework for examining oxidative stress, a biological condition associated with disrupted electron-transfer chemistry. Studying these reactions can help clarify how altered redox behavior relates to disease mechanisms and cellular energy problems. The same principles also support investigations in environmental biology and the development of bioenergetic technologies.