What is the fate of pyruvate in yeast?

1.	What is the fate of pyruvate in yeast?
Answer» Yeast shows both aerobic and anaerobic respiration depending upon the presence or absence of oxygen. 1. In absence of oxygen, the pyruvate undergoes anaerobic respiration where it is decarboxylated to acetaldehyde. The acetaldehyde is then reduced by NADH+H to ethanol and carbon dioxide. This type of anaerobic respiration is termed alcoholic fermentation. 2. In the presence of oxygen however, it can respire aerobically to produce CO₂ and H₂O.

Answer»

Yeast shows both aerobic and anaerobic respiration depending upon the presence or absence of oxygen.

1. In absence of oxygen, the pyruvate undergoes anaerobic respiration where it is decarboxylated to acetaldehyde. The acetaldehyde is then reduced by NADH+H to ethanol and carbon dioxide. This type of anaerobic respiration is termed alcoholic fermentation.

2. In the presence of oxygen however, it can respire aerobically to produce CO₂ and H₂O.

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What is the fate of pyruvate in yeast?

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