This preview shows page 1. Sign up to view the full content.
Unformatted text preview: Reductionthe addition of an electron to an atom or molecule Molecule A gives an electron to Molecule B A is oxidized B is reduced Whenever one substance is oxidized, another substance must be reducedthe electron must have somewhere to go. This pairing is called oxidation-reduction or redox reactions. Biological oxidations often involve the removal of a hydrogen atom instead of just an electron alone. This can also be called dehydrogenation. Cells use biological oxidation-reduction ractions to extract energy from nutrient molecules. Organic compounds with large numbers of hydrogen atoms make good energy sources for cells. The energy in glucose, for example, is removed in a series of oxidation-reduction reactions and trapped in ATP....
View Full Document
- Fall '09