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NEET Biology question

BiologyRespiration in PlantsNEET

When one molecule of glucose is completely oxidized during aerobic respiration, how many molecules of carbon dioxide are released due to Tricarboxylic acid cycle?

Answer: (D)

Solution

One glucose molecule yields 2 pyruvate, hence 2 acetyl-CoA, giving two turns of the Krebs cycle. Each turn releases 2 molecules of CO2 (at the isocitrate dehydrogenase and α-ketoglutarate dehydrogenase steps), so 2 turns

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Question ID VK-113142