Index 



Bold (ace numbers indicate either a main reference or an illustration. Italics indicate scientific names 

 of taxonomic groups (species, genera, etc.). Page references to Appendixes 1 and 2 are not included. 



A 

 Aberration, 513-16 

 Abortion, 402 

 Absolute zero, 1 12 



Absorption, 128, 130-31, 310, 313, 339-40; in 

 bread mold. 176; in unicellular and colonial 

 plants, 167-68 

 Acceptor compounds. 145 

 Acceptors, electron, 162; hydrogen, 145; primary, 



145-46, 161 

 Acetylation. 154 

 Acetylcholine, 193, 414, 455 

 Acetyl CoA, 149 n. 

 Achromatium, 181 

 Acid solutions. 73-74 



Acids. 71, 74-75; acetic, 82, 177; amino (see Amino 

 acids); ascorbic, 347. 349; butyric, 177; carbonic, 

 75; citric, 153; deoxyribonucleic (see Deoxyribo- 

 nucleic acid): fatty. 81, 82, 310: gibberellic, 265: 

 homogentisic, 506: lactic, 100, 177: nucleic, 

 10 n., 88, 90. 137; organic. 82: oxaloacetic, 153; 

 palmitic. 82; pantothenic, 353: parascorbic, 265: 

 phosphoglyceric, 165: pyruvic, 145: ribonu- 

 cleic (see Ribonucleic acid): stearic. 82; uric. 

 342 

 Acini. 441 



Acromegaly, 410-11 

 Acrosome, 273 

 Acrosome filament, 273 



ACTH (see Adrenocorticotrophic hormone) 

 Actin, 436. 439 

 Actinosphaerium, 625 

 Action potential, 190, 191, 192-93, 260, 428, 429, 



448 

 Activation, 276; fertilization vs.. 274-76 

 Active transport mechanisms. 112-13, 121-24; 

 ionic transport. 123-24; phagocytosis, 121-22; 

 pinocytosis, 121-22; water transport, 123 

 Actomyosin, 439 



Adaptation, 543-44, 573: arthropod, to land con- 

 ditions, 657-58; external, 543; internal, 543; of 

 species to species, 575 

 Adenine, 134, 521; derivatives, 265 

 Adenosine diphosphate (ADP), 144, 151, 155, 162 



Adenosine monophosphate (AMP), 144 



Adenosine triphosphate (ATP), 89, 90, 135, 143- 

 44, 151, 155, 162, 163, 165, 187, 436, 439, 442 



ADP (see Adenosine diphosphate) 



Adrenal glands, 398, 406-08; cortex, 407-08; 

 medulla, 406-07 



Adrenal virilism, 408 



Adrenalin, 341, 406-07, 444; in protoplasm, 89 



Adrenocorticotrophic hormone (ACTH), 411, 413 



Adsorption. 93 



Alveoli, 359, 363 



African sleeping sickness, 627 



Afterbirth, 393 



Agammaglobulinemia, 505, 507 



Agglutinins, 325 



Agglutinogens, 325 



Agnatha, 668 



Agranulocytes, 322 



Air, alveolar, 362-63; atmosphere and alveolar, 

 comparison between, 362 



Alanine deaminase. 102 



Albinism. 504, 505 



Alcohol, 117: ethyl, 152; fermentation, 151-52 



Aldosterone, 407 



Algae, 55, 179: blue-green, 16, 17. 49, 187, 208, 

 594-95; brown. 210, 599-600; flame, 598-99; 

 golden-brown, 597-98; green. 30, 57, 59, 62, 164, 

 167-68, 596-97; nutrition of, 236-38; red, 600- 

 01 



Algin, 599 



Alkaptonuria, 505. 506, 529 



Allantois, 389, 390 



All-or-none law, 435 



Alveolar air. 362-63; atmosphere and, comparison 

 between, 362 



Amblystoma punctatum, 358 



Aminases, 102 



Animation. 152-53 



Amino acids. 84-85, 86, 135, 136, 138. 139, 152-53, 

 186, 312, 314, 339, 341-42, 346, 405, 412, 507, 

 526. See also Essential amino acids; Nonessen- 

 tial amino acids 

 Amino radical, 84 

 Aminopeptidase, 103, 108, 314 



699 



