28 CHEMIC COMPOSITION OF THE HUMAN BODY 



13. Where is fat usually found in the human body? In the animal 

 foods? 



14. Does fat contain carbon, hydrogen, and oxygen? 



15. Name the three neutral intermixed fats which are found in 

 animals. 



16. What do you understand by saponification? 



17. How are soaps formed? What is the difference between a 

 hard and soft soap? 



18. Where are proteins found in the vegetable world? Animal 

 world? 



19. What do proteins contain? 



20. Why are proteins so essential to the tissues of the body? 



21. What are proteoses and peptones? 



22. What percentages of water comprises the body weight? 



23. Name the inorganic salts found by analysis in the body tissues. 



24. Where is phosphorus found in the body tissues? Sodium 

 chlorid? Sulphur? Iron? 



