XVIU 



TABLE OF CONTENTS 



CHAPTER V 



Absoepiion OS Matkrials m General 



i. Materials absorbed by plants . 

 DifEusioa of gases ... 



Absorption of gases 



Diffusion of dissolved substances . 

 Absorption of dissolved substances 



CHAPTER VI 

 Movement or Mateeia!ls in the Plant 



1. General occurrence of movement of materials . 



2. Movement of gases 



3. Movement of water and dissolved substances 



4. The transpiration stream . . ' 



(a) Transpiration . ..... 



(6) Exudation pressure 



(c) Movement of water in tbe stem. . 



5. Movement of organic substances 



CHAPTER VII 



Material TRANsroRMAiiONS in the Plant 



Page 

 . 96 

 . 96 

 • 97 



. lOI 



. Ill 



118 

 118 

 121 

 122 

 122 

 128 



131 

 136 



139 

 140 

 148 



iSS 

 160 

 163 

 166 

 168 

 170 

 172 

 173 

 173 

 174 



I. The cell as the physiological unit 

 ^ 2. Proteins . . . 



3. Enzymes . . ... 



4. Protein decomposition in plants . . . 



5. Nitrogenous products of protein decomposition. 



6. Protein synthesis in plants .... 



7. Alkaloids, toxins and antitoxins . . . . 



8. Lipoids and phosphatides ... 



9. Carbohydrates . . . .... 



10. Glucosides. ... 



11. Organic acids . ... 



12. The importance of water in plants ... 



13. The germination of seeds .... 



CHAPTER VIII 

 Fermentation and Respiration 



1. General discussion . . ... 178 



2. Alcoholic fermentation . 181 



3. Other kinds of fermentation . . 189 



4. Plant respiration 190 



5. Apparatus for measuring plant respiration 19S 



6. Formation of water during respiration 197 



7. Liberation of heat during respiration ... . 198 



8. Anaerobic, or intramolecular respiration 200 



9. Respiration chromogens 202 



10. Respiratory enzymes ... . . 203 



11. Materials consumed in respiration . .. 207 



12. Special cases of respiration in lower plants . . 210 



