Which of the following is produced by yeast fermentation?

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Multiple Choice

Which of the following is produced by yeast fermentation?

Explanation:
Alcoholic fermentation with yeast mainly produces ethanol as the end product. In this process, yeast metabolizes sugars through glycolysis to pyruvate, then converts pyruvate to acetaldehyde with release of CO2, and finally reduces acetaldehyde to ethanol. The CO2 that’s released is a byproduct and often escapes as gas (or contributes to carbonation if dissolved), while glycerol and certain aroma compounds can form in smaller amounts as secondary byproducts. The key idea is that ethanol is the primary product of yeast fermentation, with CO2 accompanying it but not serving as the main product.

Alcoholic fermentation with yeast mainly produces ethanol as the end product. In this process, yeast metabolizes sugars through glycolysis to pyruvate, then converts pyruvate to acetaldehyde with release of CO2, and finally reduces acetaldehyde to ethanol. The CO2 that’s released is a byproduct and often escapes as gas (or contributes to carbonation if dissolved), while glycerol and certain aroma compounds can form in smaller amounts as secondary byproducts. The key idea is that ethanol is the primary product of yeast fermentation, with CO2 accompanying it but not serving as the main product.

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