Biochemistry In which of the following step of TCA cycle, carbon dioxide is removed? A Alpha-ketoglutarate dehydrogenase B Malate dehydrogenase C Succinate dehydrogenase D Fumarase 💡 Explanation In which of the following step of TCA cycle, carbon dioxide is removed? ✓ Correct Answer: A. Alpha-ketoglutarate dehydrogenase