Answer
Since oxygen is absent, other electron acceptors are utilized for oxidation. For example electrons are transferred to NAD+ to form NADH and pyruvate.
Work Step by Step
As above
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.