Question

during which process is water produced?
alcohol fermentation
acetyl coa formation
electron transport chain
citric acid cycle

Explanation:

• Alcohol fermentation produces ethanol and carbon dioxide.
• Acetyl CoA formation produces carbon dioxide.
• The citric acid cycle produces carbon dioxide.
• In the electron transport chain, oxygen acts as the final electron acceptor. Hydrogen ions combine with oxygen to form water ($\ce{2H^{+} + \frac{1}{2}O_{2}\to H_{2}O}$).

Answer:

C. electron transport chain