458 



INDEX 



Hemorrhagic disease of infants, 221 

 Heparin, 67 



Hepatocupreiu, 140, 187 

 Herbicides, selective, 407 

 Heteropolysaccharides, 51, 66 



of animals, 67 



of plants. 66 

 Hexokinase inhibition : 



by diabetogenic hormone, 325, 326 



effect of insulin on, 302 

 Hexokinase reaction, 324 

 Hexosamines, 37 

 Hexosans, 53 

 Hexosediphosphate, 179 

 Hexosemonophosphate, 179 

 Hexuronic acids : 



furfural from, 37 



relation to pentoses, 39 

 Hill reaction, 393, 394 

 Hippuricase, 265 

 Histamine, 321 



effect on secretion of gastric juice, 

 308 



relation to allergy, 289 

 Histidine : 



bacterial decarboxylation of, 321 



formula, 115, 120 

 Histidine decarboxylases, 266 

 Histones, 111, 153 

 Homocysteine : 



for rat growth, 343, 344 



formula, 117 



intermediary product, 122 

 Homogentisic acid, 350 

 Homopolysaccharides, 51 

 Homoserine, formula, 116 

 Honey, sugars in, 33 

 Hopkins-Cole test, 143 

 Hordein, 108, 125 

 Hormones : 



adrenal, 287-290, 290-202 



anterior pituitary, 305-307 



antidiuretic, 303 



cortical, 290-292 



definition, 286 



estrogenic, 296 



follicle-stimulating (FSH), 307 



gastrointestinal, 306-309 



gonadotropic, 292 



growth, 305, 306 



lactogenic, 295, 305-307 



luteotropic, 293, 294 



metabolic function of, 287 



of plant growth, 406, 407 



ovarian, 292 



pancreatic, 300-303 



parathyroid, 182 



posterior pituitary, 303 



progestational, 294, 297 



testicular, 295, 296 



thyroid-stimulating, 307 

 Hyaluronic acid, 67 

 Hyaluronidase, 67, 263 

 Hydrases, 266 



Hydrocarbons, higher paraffin in waxes, 

 93 



Hydrochloric acid, gastric secretion of, 



312-313 

 Hydrogen, bacterial formation of, 377, 



383 

 Hydrogen bonds, 10 

 Hydrogen carriers, coenzymes as, 334 

 Hydrogen equivalent, 164 

 Hydrogen ion concentration : 



biological importance of, 167 



pH and, 169 

 Hydrogen sulfide, in colon, 321 

 Hydrogen transport system, 333 



as energy generator, 420-422 

 Hydrogenation of oils, 89 

 Hydrolases, 263 

 Hydrolecithin, 97 

 Hydrolysis, 19 



Hydroperoxides in fat oxidation, 90 

 Hydroquinone, 394 



as antioxidant, 90 

 3-Hydroxyanthranilic acid, 347 

 P-Hydroxybutyric acid, 339 

 17-Hydroxycorticosterone formula, 290 

 17-Hvdroxv-ll-desoxycorticosterone for- 

 mula, 290 

 3-Hydroxykynurenine, 347 

 Hydroxylysine, formula, 119 

 Hydroxyproline : 



biosynthesis of, 346 



formula, 121 

 5-Hydroxytryptamine, 304 

 Hydroxytyramine, 288 

 Hyperacidity, 314 

 Hyperglycemia, 327 

 Hyperglycemic factor of pancreas, 303 

 Hypertension, 304 

 Hypoglycemia, 327 

 Hypophysis, hormones of, 303 

 Hypoxanthine : 



formula of, 154 



metabolism of, 155 



Idose, 24 

 Imino acids, 352 

 a-Iminoglutaric acid, 342 

 Immuno-polysaccharides, 68 

 Indican, 321 

 Indicators : 



for pH measurement, 173 



use of for acid-base titrations, 167 

 Indole, 320. 354 

 Indoleacetic acid, 406 



effect on rooting, 408 

 Indoleacetonitrile, 406 

 Indole-5,6-quinone, 350 

 Inorganic elements, required by micro- 

 organisms, 360 

 Inorganic phosphate, formation of ATP 



from, 422 

 Inositol, 254, 367, 378 

 Inositol meta diphosphate in phospholi- 



pides. 101 

 Insulin, 300-302 



amino acid content, 125 



mechanism of physiological action, 302 



