456 



INDEX 



Flavoproteins, 140, 268 

 Fluorine : 



in bones, 193 



relation to tooth decay, 193 



toxicity of. 193 

 Fluoroapatite, in bones, 193 

 FMN (see Flavin mononucleotide) 

 Folacin. 247 

 Folic acid, 247 



food sources, 249 



metabolic function, 281 



relation to methvlation in v'wo, 345 

 Folinic acid. 248 

 Follicle-stimulatins hormone (FSH). 292 



properties of. 307 

 Food calorie utilization, relation to work 



done, 428. 429 

 Food intake, relation to body weight, 429 

 Foods : 



amino acid content. 127 



cost of food calories, 43, 44 



mineral composition of, tables, 439-445 



proximate composition of. table. 434- 

 438 



vitamin content of, table, 447—448 

 Foot-pound (energy unit), definition. 413 

 Formic acid, 77. 363. 377, 383 



from glycine in animal body, 344 

 Formyliiteroic acid. 247 

 Formylpteroylglutamic acid, 248 

 Formyltetrahydropteroylglutamic acid, 



359 

 Fragility test {see Capillary resistance 



test ) 

 Free energy change : 



in oxidation-reduction reactions, 420 



of glycolysis, 418, 419 



relation to chemical eijuilibrium. 414, 

 415 

 Free energy (A-P'), definition, 414 



equilibrium constants and, 415 



of glucose combustion. 414 



relation to entropy and heat change, 414 

 Free HCl, gastric juice, 312, 313 

 Fructosans, 63 



Fructosazone (see Glucosazone) 

 Fructose, 33, 34 



metabolism of. 324. 326 



ring forms of, 26, 35 

 Fructose-1, 6-diphosphate, in glycolysis, 



326 

 Fructose-6-phosphate, 336 

 Fruit drop, control of premature, 406, 407 

 Fucose, 38 

 Fuel value, of various food materials, 422, 



423 

 Fumarase, 266 

 Fumaric acid, 331 

 Furanose ring forms of sugars, 26 

 Furfural, 53 



Furfuraldehyde from pentoses, 26 

 Fusarium avenaceum, 370 



G 



Galactans, 63 

 Galacto-araban, 52 



Galactosamine, 37 

 Galactosazone crystals, 47 

 D-Galactose. 32 



metabolism of. 324. 326 

 L-Galactose, 33 



Galactose-1-phosphate, 280, 326 

 Galactosidases, 263 

 Galactosides, 32 

 Galacturonic acid, 38, 39 

 Gallstones, 95 



Gases, exchange in lungs, 187 

 Gastric digestion, 312 

 Gastric iuice : 



HCl in. 312. 313 



pH of, 312 



regulation of flow, 314 



secretion of, 308 

 Gastrin, 308 



Gastrointestinal hormones, 306 

 Gelatin, 124 

 (Jentiobiose. 41 

 Gentiobiuronic acid, 21 

 Geodin. 376 

 Geometric isomers, 79 

 Geotropism. 406 

 Germinating seeds, formation of amides 



by. 402 

 Gigantism, 305 

 Gliadin. 109. 125 

 Globulins, 108, 109, 110, 111, 125 

 Glucoascorbic acid, antagonist of vitamin 



C, 256 

 Glucokinase, 267 

 Gluconic acid, 22, 129, 364, 380 

 Glucosamine, 37 



Glucosamine, N-acetyl. in chitin, 64 

 Glucosamine, N-methyl, 37 

 Glucosans, 21 

 Glucosazone, 31, 32 

 Glucosazone crystals, 47 

 Glucose : 



blood levels of, 325, 327 



commercial preparation of, 29 



formation in nature, 28 



from amino acids, 354 



metabolism of, 236, 324 



occurrence, 28 



oxidation of by cupric ion, 20 



phosphorylation and absorption, 325 



ring forms of, 25 

 Glucose-l,6-diphosphate, 280 

 Glucose-1-phosphate, 280 



in glycolysis, 326 

 Glucose-6-phosphate, from hexokinuse re- 

 action, 324 

 Glucosidase, 263 

 Glucosides, 28 

 Gluco-xylan, 52 

 Glucuronic acid, 38, 378 

 Glutamic acid : 



formula of, 119 



in plant metabolism, 401, 402 



in transamination, 342. 343 



role in nitrogen fixation, 404 



y-linkage, 131 

 Glutamic decarboxylases, 206 



