Question : Oxygen is critical for aerobic respiration. Explain its rol

1.	Question : Oxygen is critical for aerobic respiration. Explain its rolewith respect to ETS.
Answer» Solution :Importance of `O_(2)`in aerobic respiration : Glycolysisof glucose is DONE in cytoplasm and with that respiration begins. After that kreb.s cycleand at the end ETS goes in INNER membrane of mitochondria, `o_(2)`is required at the last in ETS. Where it acts as a hydrogen ACCEPTOR. `O_(2)` releases `e^(-)`from that process. If `O_(2)` is not PRESENT then electrons do notpass through Co enzyme. Soproton pump is not formed andATP is not formed. Thus `O_(2)`is necessary in oxidative phosphorylation.

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