In glycolysis, as in all the stages of cellular respiration, the transfer of electrons from electron donors to electron acceptors plays a critical role in the overall conversion of the energy in foods to energy in atp. these reactions involving electron transfers are known as oxidation-reduction, or redox, reactions. fill the words from brackets to the appropriate blanks to complete the sentences. (nadh, nad+, pyruvate, water, glucose, oxygen, reduced, oxidized) 1. when a compound donates (loses) electrons, that compound becomes such a compound is often referred to as an electron donor. 2. when a compound accepts (gains) electrons, that compound becomes . such a compound is often referred to as an electron acceptor. 3. in glycolysis, the carbon-containing compound that functions as the electron donor is 4. once the electron donor in glycolysis gives up its electrons, it is oxidized to a compound called 5. is the compound that functions as the electron acceptor in glycolysis. 6. the reduced form of the electron acceptor in glycolysis is.