Question

Lactic acid fermentation differs from ethyl alcohol fermentation in that

Answer 1

Ethyl alcohol fermentation differs from lactic acid fermentation in that... ... Where would you expect lactic acid to be produced? In muscle cells that are lacking enough oxygen to carry aerobic respiration. 

Answer 2

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Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes. In biochemistry, it is narrowly defined as the extraction of energy from carbohydrates in the absence of oxygen.