Biochemistry Substrate level phosphorylation occur in step catalysed by which of the following enzyme in TCA cycle? A Isocitrate dehydrogenase B Malate dehydrogenase C Aconitase D Succinate thiokinase 💡 Explanation Substrate level phosphorylation occur in step catalysed by which of the following enzyme in TCA cycle? ✓ Correct Answer: D. Succinate thiokinase