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: Physiology
[{'content': 'Calorific value of protein is \nSelect and explain. \nA. 9.3 kcal/g as measured by bomb calorimeter., B. 5.3 kcal/g as measured by bomb calorimeter, C. 9.3 kcal/g as measured by combustometer, D. 5.3 kcal/g as measured by combustometer', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Combustometer is a wrong terminology given to confuse the aspirants.\nA bomb calorimeter device is used to measure energy released by combustion of foodstuffs outside the body. It uses Direct Calorimetry to measure the calorific value.\nCalorific value of various substances as measured in a bomb calorimeter are\nCarbohydrate 4.1 kcal/g\nFat 9.3 kcal/g\nProtein is 5.3 kcal/g\nNote: if measured inside the body carbohydrate and Fat have same as above values but protein has 4.1 kcal/g', 'role': 'assistant'}]