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Types of Respiration

Alcoholic Fermentation
Alcoholic Fermentation

Another familiar fermentation process is alcohol fermentation, in which NADH \text{NADH} NADH N, A, D, H donates its electrons to a derivative of pyruvate, producing ethanol. Going from pyruvate to ethanol is a two-step process.

Lactic Acid Fermentation
Lactic Acid Fermentation

Lactic acid produced in muscle cells is transported through the bloodstream to the liver, where it’s converted back to pyruvate and processed normally in the remaining reactions of cellular respiration.