Chapter 9 - Pathways That Harvest Chemical Energy - 9.4 In the Absence of Oxygen, Some Energy Is Harvested from Glucose - 9.4 Recap - Learning Outcomes - Page 186: 2

In lactic acid fermentation, pyruvate from glycolysis is reduced to lactate with NADH as a reducing agent. As a result, NAD+ is regenerated to maintain the glycolysis process. In alcoholic fermentation, pyruvate is converted into acetaldehyde, releasing carbon dioxide. NADH from glycolysis reduces acetaldehyde to ethanol, thus regenerating NAD+ to maintain more glycolysis reactions.

In lactic acid fermentation, pyruvate from glycolysis is reduced to lactate with NADH as a reducing agent. As a result, NAD+ is regenerated to maintain the glycolysis process. In alcoholic fermentation, pyruvate is converted into acetaldehyde, releasing carbon dioxide. NADH from glycolysis reduces acetaldehyde to ethanol, thus regenerating NAD+ to maintain more glycolysis reactions.