450 



INDEX 



Aluminum, in living organisms, 176 



Aluminum stearate, 88 



Amidases, 264 



Amide nitrogen, in plants, 402 



Amination, 342 



Amino acid decarboxylation, 321 



Amino acid metabolism, abnormalities of, 



350 

 Amino acid oxidases, 268 

 Amino acids : 



absorption, 320 



antiketogenic, 354 



classification. 116 



color tests, 142 



content of in proteins, 124 



content of foods. 127 



D and L forms, 121 



determination, 122 



distinguishing groups in. 121 



essential, 341-342 



formulas, 116 



gl.vcogeu-forming, 354 



ketogenic, 354 



microorganisms and, 358 



nutritionally essential, 341, 342 



semiessential, 341, 342 



sequence in proteins, 131 



synthesis by plants, 401, 402 



utilization by plants, 401 



utilization of related compounds, 341, 

 342 

 a-Aminoadipic acid, as lysine precursor, 



341 

 p-Aminobenzoic acid. 254. 256, 359, 367 

 Aminobut.yric acid, formula, 116 

 Amino peptidases, 264 



specificity of, 316 

 Ammonia : 



as nitrogen source for plants, 400, 401 



conversion to urea in vivo. 352 



detoxification by plants, 402 

 Ammonification, 14, 400 

 Amygdalin, 28 

 Amylases : 



action on starch, dextrin, and glycogen, 

 58 



alpha and beta, 58 



classification. 263 

 Amylopectin. 53 

 Amylopsin, 58, 263 

 Amylose, 53 



molecular weight, 50 



structure of, 50 

 Anabolism, 324 

 Androgens, 296 

 Androsterone. 295-297 

 Anemia, 248, 251 

 Anemia, nutritional, 187 

 Angiotonase. 304 

 Angiotonin, 304 

 Anhydrides, 21 



Aniline acetate test for pentoses, 26 

 Animal protein factor, 251 

 Anions, of blood plasma, 182 

 Anorexia, relation of thiamine to, 227 

 Anterior pituitary, hormones of, 305, 307 



Antibiotics (see Aureomycin, Penicillin, 

 etc.) : 

 as stimulants of animal growth, 251, 

 322 



production methods, 370 

 Anticoagulant, heparin as, 67 

 Antidiuretic, effect of posterior pituitary, 



303 

 Antieggwhite injury factor (see Biotin) 

 Antigray-hair factor, 255, 256 

 Antihistamines, 289 

 Antimetabolites, 257 

 Antioxidants, 90 



Antipernicious anemia factor, 249 

 Antithyroid drugs, 300 

 Antivitamins, 256 

 Apoenzyme, 262 



Appetite, stimulation by thiamine, 227 

 Arabinose, 26 

 Arabitol, 21 

 Arachidic acid. 77 

 Arachidonic acid, 80 

 Arginase, 266 



relation to urea formation, 352, 353 

 Arginine : 



bacterial decarboxylation, 321 



biosynthesis, 346, 352 



formula, 120 

 Arginine phosphate, in invertebrate mus- 

 cle, 418 

 Arsenic : 



as antidote for selenium, 196 



in living cells, 176 

 Arterenol (see Norepinephrine) 

 Arthritis, effect of cortisone and ACTH, 



292 

 Ascorbic acid : 



formula, 224 



in foods, table, 447-448 



microorganisms and, 359 



physiological function. 222 

 Ascorbic acid oxidase, 224 

 Ash: 



composition of, 177 



content of foods, table, 434 



in normal and rachitic bone, 210 

 Ashing of biological materials, 177 

 Asparaginase, 265 

 Asparagine : 



formula, 119 



in plants, 402 

 Aspartase, 265 

 Aspartic acid: 



formula, 119 



relation to urea formation. 353 

 Aspergillus niger, 360, 361, 363 

 Aspergillus sp., 363 

 Aspergillus terreiis, 376 

 Asthma, use of epinephrine in, 289 

 Asymmetric carbon atoms, 22 

 ATP (see Adenosine triphosphate) 

 ATP-ase, role in muscle contraction, 416 

 Aureom.vcin : 



formula of, 367 



mode of action, 369 



range of activity, 368 



