During anaerobic respiration in yeast, pyruvate is converted into which of the following substances?
Ethanol and carbon dioxide
In yeast, anaerobic respiration is called alcoholic fermentation.
Pyruvate from glycolysis is first decarboxylated to acetaldehyde, releasing carbon dioxide.
Acetaldehyde is then reduced to ethanol by NADH.
The net products are therefore ethanol and carbon dioxide; lactic acid is formed in muscle, water is from aerobic respiration and glucose is the starting substrate not a product.
Hence, Ethanol and carbon dioxide.
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