I2O 



PHYSIOLOGICAL CHEMISTRY 



with the amino (NH2) group of the other with the elimination of a mole- 

 cule of water." These pep tides are more fully discussed on pages 69 

 and 118. 



REVIEW OF PROTEINS 



In order to facilitate the student's review of the proteins, the prepara- 

 tion of a chart similar to the model given is recommended. The signs 

 + and may be conveniently used to indicate positive and negative 

 reactions. 



MODEL CHART FOR REVIEW PURPOSES 



"UNKNOWN" MIXTURES AND SOLUTIONS OF PROTEINS 



At this point the student's knowledge of the characteristics of the 

 various proteins studied will be tested by requiring him to examine sev- 

 eral "unknown" protein mixtures or solutions and make full report 

 upon the same. The scheme given on page 121 may be used in this 

 examination. 



