454 



INDEX 



Desoxy-D-glucose, 38 

 Desoxyhexoses, 37 



Desoxy nucleic acid (DNA), 152-154 

 Desoxyribose. 27 



and nucleic acids, 154, 156-158 

 Desoxysugars, 20 



Desiilfovihrio, nitrogen fixation and, 403 

 Detergents, synthetic, 15, 87 

 Detoxication, 340 

 Deuterium, as metabolic tracer, 335, 340, 



343 

 Dextrans, 60, 378 

 Dextrin, limit, 58 

 Dextrins, 57 

 Dextrose, 28 

 Diabetes. 327 



ketone bodies and, 339 



urinarv glucose in, 327 



with alloxan, 302 



with phlorizin, 302 

 Diabetes insipidus, 303 

 Diabetes mellitus. 301 

 Diabetic animals, utilization of carbohy- 

 drate by. 302 

 Diabetogenic hormone, 305. 325. 327 

 Diacetyl, 85 



Diaminobutyric acid, 119. 122, 370 

 Diastase, 58 

 Dibasic acids : 



from fat catabolism, 337 



in waxes, 94 

 2-6-Dichlorophenolindophenol, use in de- 

 termining vitamin C, 225 

 2, 4-Dichlorophenoxyacetic acid. 407 

 Dicumarol. 221 



Diethylstilbestrol (see Stilbestrol) 

 Dieting, dangers of, 429 

 Digestion, 311-322 

 Digestion, gastric, 312 



intestinal, 315 



salivary, 311 

 Dihydrosphingosine, in cerebrosides, 101 

 Dihydroxyacetone phosphate, 329 

 Dihydroxvphenylalanine, 288 

 Diiodotyrosine. 118, 297, 298 

 5, 6-Dimethvlbenzimidazole, from vitamin 



Bi„, 250 

 Dimethylbenzimidazole riboside, 159 

 Dimethylpropiothetin, 345 

 Dipeptidases, 265 

 Diphosphopyridine nucleotide (DPN) : 



forms of, 275 



function in cytochrome system, 332, 333 



relation to nucleotides, 158 



role in tissue oxidation, 282 



structure of, 275 

 Diphosphothiamine (see Thiamine pyro- 

 phosphate) 

 Disaccharide linkage, 41 

 Disaccharides, composition of, 40 



hydrolysis of, 42 



reducing power of, 41, 42 

 Diseases, nutritional, 200 

 Dissociation constants, definition, 170 

 Djencolic acid, formula, 118 

 Doisynolic acid, 297, 298 



"Dopa," formula, 349 



Double bonds, con.iugated, 390, 391 



DPN (see Diphosphopyridine nucleotide) 



Drving oils, 89 



Dulcitol, 21 



Dwarfism, 305 



E 



Eating habits, relation to body weight, 



429 

 Eberthella typhi., fermentation products 



of, 128. 363, 377 

 Edestin. 108 



Eggwhite injury disease. 244 

 Einstein, energy unit, 395 

 Elaidic acid, 79 

 Electrolyte metabolism, effect of cortical 



hormones on. 291 

 Electrolytes, in blood plasma. 182 

 Electrophoresis of proteins, 107 

 Eleostearic acid, 80 

 Embden-Meyerhof scheme, 326, 329 

 Emulsifying agent, lecithin as, 98 

 Emulsin, 263 



Endergonic reactions, definition, 414 

 Endocrine glands, 286 

 Endoenzymes, 260 

 Energetics, biological definition, 413 

 Energy, forms of in living things, 413 



content of foods, table, 434 



for muscular work, immediate source of, 

 416 



phosphate bond, 416^22 



sources of, for bacteria, 358 

 Energy metabolism, efficiency of, 422 

 Energy production in tissues, 334 

 Energy requirements, for various muscu- 

 lar activities, 427 



of animals, 424-427 



of human beings, 426^28 

 Energv units, interrelationships between, 



413 

 Engines, efficiency of, 422 

 Enolase, 266 

 Enriched bread, 232 

 Enriched flour, 232 

 Enterogastrone, 309, 314 

 Enterokinase, 316 

 Entropy (As), 414 

 Entropy changes. 424 

 Enzymes, 260-285 



activation, 273 



amino acids in, 124-126, 260 



chemical nature, 260 



classification, table, 262, 263-269 



crystalline, 260 



definition of, 260 



effect of ions on, 273 



effect on energy of activation, 270 



endo and exo, 260 



factors affecting activity, 271 



inhibition of. 272 



mechanism of action, 270 



nature of action, 270 



occurrence, 260 



prosthetic groups of, 261, 278 



