Question

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

Explanation:

In the electron - transport chain, oxygen acts as the final electron acceptor. Hydrogen ions combine with oxygen to form water. Alcohol fermentation produces ethanol and carbon dioxide. Acetyl - CoA formation does not produce water. The citric acid cycle produces carbon dioxide, ATP, NADH, and FADH₂ but not water as a primary product from its core reactions.

Answer:

C. electron transport chain