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

Options

A. fats are catablised in adipose tissues to form glucose
B. amino acids are catabolised in kidney to from glucose
C. amino acids are dischaerged in blood steam from liver
D. glycogen from muscles is released in blood stream.

Answer

A

Explanation

In diabetes melitus, a patient is unable to produce or utilise insulin hormone. This hormone helps in maintaining the level of glucose in the blood by converting extra glucose into glycogen. Thus, in diabetes melitus, body of the patient becomes incapable to store glucose in the urine. A patient kept on carbohydrate free diet is excreting glucose in the urine, because 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 (breadkdown of fats into glucose in adipose tissues).