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
BMR is dependent on: March 2013 
Select and explain. 
A. Body weight, B. Surface area, C. Amount of adipose tissue, D. Amount of lean body mass
B: Surface area
Answer: B: Surface area 
Explanation: Ans. B i.e. Surface areaBasal metabolic rate/BMR and the closely related resting metabolic rate (RMR)It is the amount of energy expended daily by humans and other animals at rest.BMR generally decreases with age and with the decrease in lean body mass (as may happen with aging).Increasing muscle mass increases BMR