Punjab Medical Punjab - MET Solved Paper-2005

  • question_answer
    Under prolonged starvation, brain received energy from:

    A)  carbohydrates                 

    B)  fats

    C)  proteins                             

    D)  acetoacetate

    Correct Answer: D

    Solution :

    Heart, muscles and renal cortex use acetoacetate in preference to glucose. In contrast, glucose is the major fuel for the brain in well-nourished persons on a balanced diet. However, the brain adapts to the utilization of acetoacetate during starvation and diabetes.


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