Question

A patient of diabetes mellitus excretes glucose in urine even when he is kept on a carbohydrate free diet. It is because-

• A. Amino acids are catabolized in kidney to form glucose
• B. Glycogen from muscles is released in blood stream
• C. Fats are catabolized in adipose tissue to form glucose
• D. Amino acids are discharged in blood stream from liver

Answer 1

The correct option is C Fats are catabolized in adipose tissue to form glucose

In diabetes mellitus, a patient is unable to produce or utilize insulin hormone. This hormone helps in maintaining the level of glucose in the blood by converting extra glucose into glycogen. Thus, in diabetes mellitus, the body of the patient becomes incapable to store glucose in the form of glycogen. Therefore, he starts excreting glucose in the urine. If a patient kept on a carbohydrate-free diet is excreting glucose in the urine, then this means, high level of glucose in the blood not only depends on dietary carbohydrates but also on glycogenolysis (breakdown of glycogen into glucose in the liver) and gluconeogenesis (breakdown of fats into glucose in adipose tissues).

So, the correct answer is- Fats are catabolized in adipose tissue to form glucose