Question

what do alcohol fermentation, acetyl coa formation, and the krebs cycle have in common?
all produce water.
all produce carbon dioxide.
all produce atp.
all produce alcohol.

Explanation:

Alcohol fermentation produces carbon - dioxide and alcohol. Acetyl CoA formation from pyruvate releases carbon dioxide. The Krebs cycle also produces carbon dioxide. Water is not produced in alcohol fermentation. ATP is not produced in alcohol fermentation in the same sense as in the Krebs cycle. Only alcohol fermentation produces alcohol.

Answer:

All produce carbon dioxide.