What process(es)is(are)most directly prevented in the absence of adequate oxygen?

Question

Quizplus · Accepted Answer

The electron transport chain, which relies on oxygen as the final electron acceptor, is directly prevented in the absence of adequate oxygen. Without oxygen, the electron transport chain cannot function, leading to a buildup of electron carriers and ultimately an inhibition of the processes that rely on the electron transport chain, such as oxidative phosphorylation. Glycolysis and the citric acid cycle can still occur in the absence of oxygen, but they do not produce as much ATP as when oxygen is present.

What Process(es)is(are)most Directly Prevented in the Absence of Adequate Oxygen