This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Biochemistry
rate limiting enzyme in TCA cycle produce how many atp/gtp? 
Select and explain. 
A. 1, B. 4, C. 3, D. 10
A: 1
Answer: A: 1 
Explanation: ratelimiting enzyme in TCA cycle is SUCCINATE THIOKINASE which is responsible for subtrate level phosphorylation one GTP is produced in this step imp point : when ever a enzyme with KINASE suffix produce ATP. ref : vasudevan 7th ed