Fructose-6-phosphate ketolase, 



41 

 Fumaric acid, 37 



Galactose, 49 



Geranylgeranyl pyrophosphate, 



61 

 Glucose- 1,6-diphosphate, 52 

 Glucose- 1 -phosphate, 49, 54 

 Glucose-6-phosphate, 49, 52 

 Glutamic acid 



formation of, 34, 35 

 light-dark labeling of, 48 

 rate of formation, 31 

 two pools of, 30 

 Glutamine, 31 

 GlyceraIdehyde-3-phosphate, 



11,51 

 a-D-Glyceryl-1-phosphate, 59 

 Glycine 



as porphyrin precursor, 62 

 origin of, 36, 38 

 rate of formation, 31 

 slow labeling of, 32 

 Glycolaldehyde-thiamine pyro- 

 phosphate, 41 

 Glycolic acid 



direct formation from CO2, 



44,45 

 effect of CO2 level on forma- 

 tion, 40 

 effect of Mn+ + deficiency 



on, 46 

 formation in barley seed- 

 lings, 39 

 formation from sugar phos- 

 phates, 43 



labeling by T and C^*, 45 

 labeling of carbon atoms, 39 

 role in hydrogen transport, 46 



Glycolyl CoA, 43, 44 



Glyoxylate, 44, 62 



Glyoxylate cycle, 48 



Glyoxylic acid, 38, 39 



Hematin pigments, 60, 64 

 Hexoses, degradation of, 16 

 /3-Hydroxy-/3-methyl glutaryl, 



60 

 •y-Hydroxyglutamic acid, 35 



Inorganic phosphate, 51 

 Isomerase, 9 



Isopentenyl pyrophosphate, 61 

 Isoprene unit, 61 



2-Keto-3-deoxy-D-araboheptonic 



acid-7-phosphate, 65 

 Ketoglutaric acid, 33 



Malic acid 



early fixation product, 17, 29 



formation of, 37 



reactions of, 38, 63 

 Malonyl CoA, 57 

 Mannose, 49 



Mannose-6-phosphate, 53 

 Mesaconic acid, 35 



125 



