CONTENTS 



CHAP. PAQE 



I. INTRODUCTION . <-. 



II. THE COLLOIDAL STATE . . . . - 10 



III. ENZYME ACTION . . . 1L 



IV. CARBON ASSIMILATION .... 26 



V. CARBOHYDRATES AND THEIR HYDROLYZING 



ENZYMES . .\ . . -41 



VI. THE FATS AND LIPASES ... 79 



VII. AROMATIC COMPOUNDS AND OXIDIZING EN- 

 ZYMES . '*- - 8 ? 



VIII. THE PROTEINS AND PROTEASES . . . .118 



IX. GLUCOSIDES AND GLUCOSIDE-SPLITTING EN- 

 ZYMES .... -142 



X. THE PLANT BASES . . . . . - .154 

 INDEX .... 168 



