This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
One Krebs cycle generates how many ATP ? 
Select and explain. 
A. 6, B. 12, C. 24, D. 36
B: 12
Answer: B: 12 
Explanation: Ans. is 'b' i.e., 12 This question is slightly different from previous one. Here the examiner is asking about the generaion of ATPs per TCA cycle.In a single TCA cycle 10 molecules of ATP are produced (12 molecules according to older calculations).