This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory Chain, Subject name: Biochemistry
[{'content': 'If FADH2 provides reducing equivalents to electron transport chain then ATP formed will be? \nSelect and explain. \nA. 1.5, B. 2.5, C. 3.5, D. 4.5', 'role': 'user'}, {'content': "Answer: A \nExplanation: ANSWER: (A) 1.5REF: Harper's 28 ed page 306See Biochemistry 2013 Session 2 for details of TCA/kerb cycleIf NAD H, provides reducing equivalents , then 2.5 ATP are producedIf FADH., provides reducing equivalents then, 1.5 ATP are produced", 'role': 'assistant'}]