METABOLISM 



6iy 



From your experiments what do you conclude as to the relative efficiency of 

 acid and alkali in altering the reaction of the urine? 



28. Influence of a High Calorie Non-Nitrogenous Diet. If an 



individual fasts there is a combustion of a certain amount of protein 

 tissue each day of the fast. The destruction of such tissue is rather 

 low on the first day due to the fact that the glycogen stores of the body 

 are being utilized to furnish the necessary energy. If an individual 



FIG. 192. BERTHELOT- AT WATER BOMB CALORIMETER. 



instead of fasting, ingests a diet of high calorific value and very low in 

 nitrogen the output of nitrogen in the urine of the third or fourth day 

 will be less than on the third or fourth day in fasting. This is due to 

 the fact that the body derives sufficient energy from the high calorie 

 diet and there is less destruction of protein body tissues than occurs in 



