xu 



PROBLEMS IN PHOTOSYNTHESIS 



§31. The Nature of the Photosynthesis Enzyme 79 



§ 32. The Significance of Vanadium 81 



§ 33. The Hyposulfite Method ■ • ■ ^- 



§ 34. The Carbon Dioxide Outburst 83 



§ 35. The One-Quantum Reaction of Photosynthesis 84 



§ 36. Quantum Requirement and Photosynthetic Quotient 87 



§ 37. Splitting of Photosynthesis into Light and Back Reactions 88 



§ 38. Some Mathematical Considerations 90 



§ 39. Stoichiometric Oxygen Production 92 



§ 40. Oxygen Capacity and Quantum Requirement 95 



§ 41. Oxygen Capacity and Induced Respiration 97 



§ 42. Photosynthesis and Respiration 100 



§ 43. Some Final Remarks 104 



Chapter 4. The Chemistry of Photosynthesis 



A. Introductory Notes 



§ 44. Essentials of Glycolysis 109 



§ 45. Oxidative Decarboxylation of Pyruvic Acid 112 



§ 46. The Tricarboxylic Acid Cycle 113 



§ 47. The Pentose Phosphate Pathway 116 



B. The Problem of Water Photolysis 



§ 48. Introductory Remarks 121 



§ 49. Hill Reactions 124 



§ 50. Phosphorylations 127 



§ 51. Light Phosphorylation 129 



§ 52. Some Final Remarks 134 



C. Intermediate Products of Photosynthesis 



§ 53. The Carbon Cycle of Photosynthesis 139 



§ 54. Is Photosynthesis the Reversal of Respiration? 142 



§ 55. The Significance of Lipoic Acid 143 



§ 56. The Significance of Vitamin K 149 



§ 57. Some Other Investigations 152 



§ 58. Some Final Remarks 155 



D. Carbon Dioxide 



§ 59. The Fluoride Reaction 160 



§ 60. The Reaction Equations of Photosynthesis 162 



§ 61. Amino-acids in Chlorella 163 



§ 62. Lactic Acid Formation in Chlorella 165 



§ 63. Breakdown and Resynthesis of Glutamic Acid 166 



§ 64. The Necessity for Glutamic Acid in Photosynthesis 169 



§ 65. Dissociating Carbon Dioxide 171 



§ 66. The Carotenoid Oxygenase of Chlorella 173 



§ 67. Experiments with Quinone 176 



§ 68. Quinone as a Catalyzer 178 



