answers.input_text: short
answers.span_text: respiration using electron acceptors other than molecular oxygen
questions: what is the role of anaerobic respiration in living things
name: Anaerobic respiration
contexts: Anaerobic respiration is respiration using electron acceptors other than molecular oxygen ( O ) . Although oxygen is not used as the final electron acceptor , the process still uses a respiratory electron transport chain called physolmere ; it is respiration without oxygen .