In which two steps of the citric acid cycle are molecules of carbon dioxide produced?

Question

Quizplus · Accepted Answer

Carbon dioxide is produced in steps three and four of the citric acid cycle. Specifically, in step three, the enzyme isocitrate dehydrogenase catalyzes the conversion of isocitrate to alpha-ketoglutarate, producing carbon dioxide as a byproduct. In step four, the enzyme alpha-ketoglutarate dehydrogenase catalyzes the conversion of alpha-ketoglutarate to succinyl-CoA, also producing carbon dioxide as a byproduct.

In Which Two Steps of the Citric Acid Cycle Are