NTA Abhyas NEET2020BotanyRespiration in PlantsPractice
Pyruvate dehydrogenase is used in converting
Options
- Aglucose to pyruvate
- Bpyruvate to lactate
- Cpyruvate to glucose
- Dpyruvate to Acetyl Co-A
Correct answer
D. pyruvate to Acetyl Co-A
Step-by-step solution
At the end of glycolysis, 2 molecules of pyruvic acid are formed in the cytoplasm. The 2 molecules of pyruvic acid enters mitochondria to undergo oxidative decarboxylation to form acetyl fraction (2C) in the presence of enzyme pyruvate dehydrogenase and M g 2 + as co-factor. 2 molecules of acetyl fraction (2C) combine with 2 molecules of coenzyme A to form 2 molecules of acetyl coenzyme A (2C). The two molecules of hydrogen released during this reaction are accepted by 2 molecules of coenzyme N A D + and it is redu