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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
FADH2 enters the respiratory chain through which complex?
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The correct answer is  In Complex II (succinate-Q reductase), FADH2 is formed during the conversion of succinate to fumarate in the citric acid cycle and electrons are then passed several Fe-S centers to Q. Reference: Harper; 30th edition; Page no: 128