98 THE AMINO ACIDS 



process of deamination. The carbon remainders may 

 be transformed into carbohydrate or in other ways 

 changed so as to yield energy and heat. Protein 

 material broken down within the tissues undoubtedly 

 suffers a series of hydrolytic cleavages, resulting in the 

 formation of amino acids and the latter presumably 

 undergo the same fate as those produced from food 

 protein. 



According to this view protein synthesis is not 

 restricted to any one organ or tissue but all possess the 

 same property. Urea formation also can no longer 

 be assigned to the liver or some special urea- forming 

 organ, but on the other hand every tissue probably is 

 capable of forming this substance. 



REFERENCES TO LITERATURE 



Cathcart: The Physiology of Protein Metabolism. 1912. 

 Folin: American Journal of Physiology. 1905, 13, p. 45. 



Folin: Intermediary Protein Metabolism. Journal of the 

 American Medical Association. 1914, 63, p. 823. 



Hammarsten: Text Book of Physiological Chemistry. 1914. 

 Liebig: Complete Works on Chemistry. 1856. 



Mendel: Theorien des Eiweissstoffwechsels nebst einigen 

 praktischen Konsequenzen derselben. Ergebnisse der 

 Physiologic. 1911, il, p. 418. 



