Chapter 9, Cellular Respiration and Fermentation - 9.3 - Fermentation - 9.3 Assessment - Page 265: 1b

Both lactic acid and alcoholic fermentation regenerate NAD$^{+}$ in the absence of oxygen. The difference is that alcoholic fermentation produces ethyl alcohol and carbon dioxide whereas lactic acid fermentation produces lactic acid.

Both lactic acid and alcoholic fermentation regenerate NAD$^{+}$ in the absence of oxygen. The difference is that alcoholic fermentation produces ethyl alcohol and carbon dioxide whereas lactic acid fermentation produces lactic acid.