THE NUTRIENTS AND THEIR FUNCTIONS 59 



Comparison of Protein, Fat and Carbohydrates 

 I pound protein = i J^ pounds carbohydrates for producing heat. 

 I pound fat = 2.25 pounds carbohydrates for producing heat. 

 I pound fat = iX pounds carbohydrates for producing animal fat. 

 I pound fat == 2 pounds protein for producing animal fat. 

 Protein can perform the oflSces of fats and carbohydrates. 

 Fats and carbohydrates cannot form body tissue (nitrogenous substances). 



Suggestion: — ^Have the class examine some live animal and 

 give the distribution of the nutrients and their functions. 



