Some human cells, such as nerve cells, are restricted to aerobic respiration to recycle nadh and fadh2. if these cells are deprived of oxygen, then

Oxidative phosphorylation would stop in absence of oxygen as it is the terminal electron acceptor for the process.

Explanation:

Aerobic cellular respiration oxidizes the NADH and FADH2 by oxidative phosphorylation and makes these reducing powers available for glycolysis and Kreb's cycle. During oxidative phosphorylation, molecular oxygen serves as a terminal electron acceptor and the electrons from NADH and FADH2 are transferred to it via electron transport chain.

In the absence of oxygen, the process of oxidative phosphorylation would stop. The cells that are strictly dependent on aerobic cellular respiration for energy production would become deprived of ATP.

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