Redox reactions are usually found in Chemistry. But they also play a role on numerous biological processes.
Definition of Redox Reaction
???? Redox reactions are reactions that involve oxidation and reduction. Specifically, it is a chemical reaction involving the transfer of one or more electrons from one reactant to another.
Redox reactions occur in photosynthesis.
They occur in photosynthesis (and respiration!) - remember OIL RIG.
- Oxidation is Loss
If something is oxidised, it has lost electrons and may have lost hydrogen or gained oxygen.
- Reduction is Gained
If something is reduced, it has gained electrons (e-) and may have gained hydrogen or lost oxygen.
Oxidation of one molecule always involves reduction of another molecule.