Identify the correct statement.

detailed solution

Correct option is C

If oxygen is labelled with 18O, water molecules liberated show radioactivity as glycolysis, Krebs cycle and oxidative phosphorylation are completed. This is because O2 is the terminal electron acceptor. It accepts electrons and forms H2O. Fermentation does not liberate all the energy available in each sugar moleculeIn absence of O2, fermentation regenerates the NAD+ needed for glycolysisThe reactions catalysed by pyruvic dehydrogenase require the participation of several coenzymes, including NAD+ and Coenzyme A.