Moving electons to oxygen

During cellular respiration, glucose is oxidized ,and oxygen is reduced, which meas that electrons are removed from glucose and transferred to oxygen.When the electrons are moved , they 're moved as part of hydrogen atoms.In fact to turn glucose into carbon dioxide ,need to moved the hydrogen atoms .Likewise ,to turn oxygen into water need to add hydrogen atoms.

The oxidation of glucose is exergonic and makers lots of energy available to the cell.To control the energy release ,the oxidation happens as part of the many small steps of cellular respiration ,rather than as a single transfer form glucose to oxygen .During several steps of cellular respiration ,electrons are transferred form the intermediates to NAD+changing it to its reduced form,NADH+H+. NADH then transfers the electrons to an electron transport chain ,where they're passed along through a series of redox reactions before being transferred to oxygen .The electron transport chin is a series of protein in a membrane that use redox reactions to transfer energy to ATP .