Oxygen is an Important Molecule in Which of the Following

Question

Oxygen is an important molecule in which of the following?
A) citric acid cycle and ETS
B) glycolysis, citric acid cycle, and ETS
C) citric acid cycle only
D) glycolysis only
E) ETS only

Accepted Answer

Oxygen is crucial in the electron transport system (ETS) where it acts as the final electron acceptor, forming water. It is not directly involved in the citric acid cycle or glycolysis, but these processes are linked to the ETS in aerobic respiration.