Question

Which energy pathway has a direct requirement for molecular oxygen (O2)?

citric acid cycle and the electron transport chain

glycolysis

electron transport chain

citric acid cycle

Answer 1

Energy pathway has direct requirements for molecular oxygen(O2):

Answer - Electron transport chain.

Reason;

Electron transport chain;

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Glycolysis - oxygen is not required in the glycolysis pathway,this pathway act both as aerobic and anaerobic glycolysis.

Citric acid cycle - this pathway also does not require oxygen because it requires acetyl co-A and it is a anaerobic pathway.