Do our muscle cells produce alcohol? Given that alcohol and lactate fermentation both yield two ATP molecules for every glucose molecule, do you think it would make any difference which pathway was used? Explain.

No, our muscle cells do not produce alcohol; instead they undergo lactate fermentation under anaerobic conditions. Even though they produce the same number of ATP per molecule of glucose, alcohol is toxic. Producing it in large amounts during strenuous exercise would cause a variety of problems for the cell and for the organism as a whole.