301 



Coefficient 



diffusion, 140, 141, 142 



molecular extinction, 101, 102 



of resistance, 2 



of tangential drag, 2, 11 



temperature, 48 

 Cold shock, 39 

 Cole, C. L., 70 



Compartmentalization, 55, 129, 289 

 Compression 



elastic rod analogy, 8 



elements concerned in sperm, 8, 

 286 



role of fibrous sheath, 173 

 Concentration 



electronic determination, 44 



nutrient gradient, 139 



sperm density, 39, 93 



statistical distribution, 31, 32 

 Conduction 



flagellar, 172, 177-178, 263 

 Contractile elements 



arrangement, 9, 227, 292 



in bending wave, 2 



cyclical behavior, 7 



isometric activity, 10 



length changes, 9 



tension changes, 9 

 Contractile fibrils 



analogy with muscle, 8 



axial filament complex, 8, 148, 

 251, 292 



outermost peripheral fibers, 153- 

 155, 159-161, 287, 292 

 Contractile movement 



flagellum, 181, 207-210, 251 



muscle, 219-220, 224-226, 251, 

 279-282 

 Contractile protein 



bound nucleotide, 265, 282 



localization in flagellum, 291 



muscle-like flagellar protein, 27, 

 183-186, 209*; 212-214, 282, 291 



preparation from flagella, 203- 

 204 



Contraction-relaxation cycle, 15 

 oscillating flagellar gel', 210, 221, 



226 

 sperm model, 254 

 Vorticella myoneme, 238 

 Coordination, 172, 246, 293 

 acetylcholine, 293 

 algal flagella, 275-276, 293 

 intrinsic property of "contrac- 

 tile" molecule, 221 

 loss by sperm models, 254, 263 

 Csapo, A., 265 

 Crabtree effect, 127 

 Creatine phosphate, 221, 288 

 Creatinephosphokinase, 1 78 

 Crossover point 



antimycin A, 119, 121, 129 

 defined, 119 

 dinitrophenol, 119, 121 

 Amytal, 119, 120, 129 

 Cristaspira sperm 

 undulation, 7 



inhibition of flagellar ATPase, 

 241-242 

 Cysteine 



chelating agent, 259 

 plasticizing agent, 259 

 sperm model reactivation, 259 

 Cytochemistry, 171, 173, 183, 287 

 Cytochrome, 100 

 density, 113 

 distribution, 113, 289 

 oxidase, 287, 289; see also Cyto- 

 chrome a 3 

 Cytochrome a, 102-105, 108, 109. 

 Ill, 114, 116, 117, 119, 121 

 turnover number, 111, 112 

 Cytochrome^, 102-105, 108, 109. 

 Ill, 114-117, 119, 129, 172- 

 173 

 Cytochrome n ;j -CO complex, 103, 



104 

 Cytochrome b, 102-106, 108, 109. 

 111. 114-117, 119, 121. 126 



