Sugars are the ultimate source for yeast. It converts the sugar into pyruvate by the process of glycolysis. Under anaerobic condition, the pyruvate is reduced to acetaldehyde and finally to ethanol and carbon dioxide as waste products. It is an extracellular process which produces two ATP.
So, the correct answer is option D.
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Q1
In yeast, alcohol is formed by anaerobic respiration.
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Q2
The incomplete breakdown of sugars in anaerobic respiration (alcoholic fermentation) results in the formation of