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': 'Physiological uncoupler among the following is \nSelect and explain. \nA. 2,4 dinitrophenol, B. Thermogenin, C. Oligomycin, D. Atractyloside', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Thermogenin (or the uncoupling protein) is a physiological uncoupler found in brown adipose tissue that functions to generate body heat, paicularly for the newborn and during hibernation in animals. Reference: Harper; 30th edition; Page no: 13', 'role': 'assistant'}]