The nature of enzyme action / by W. M. Bayliss.

  • William Bayliss
Date:
1914
Catalogue details

Licence: In copyright

Credit: The nature of enzyme action / by W. M. Bayliss. Source: Wellcome Collection.

    188/196 page 176
    Carnot and Clausius, principle of, 105. Catalase, 27, no, 136, 137, 142. Catalysis, distinguished from chemical com- bination, 5. — final result independent of concentration of catalyst, 5, 17. — in general, 1. — in heterogeneous systems, 8, no, in, 113. II5- — negative, 2. — of reversible reactions, 6, 20. Catalyst, effect of concentration of, 3, 20. Catalysts act on both components of re- versible reactions, 7, 49. — change during reaction, 3, 5, 112. — definite chemical substances, 9. — disappearance during reaction, 3, 5, 112. — minute quantity active, 5, 20. — mode of action, 8, 107. — non-appearance in final products, 5. Catalytic action of HCl in ester-formation, 6, 8. Causes of acceleration, 88, 89. — of retardation, 76, 77, 89. Cell-activities in relation to enzymes, 37. Charcoal, occlusion of gases by, 105. Chemical changes in living organisms, i. — configuration of surface, 105, 117. Chlorophyll function, 94, 142. Clotting of milk, 133, 155. Coagulation of blood, 96, 143. Co-enzyme accelerating synthesis, 125. Co-enzymes, 41, 102, 123, 132. Colloidal characters of enzymes, 8, 12, 22, 25. 29. 33. 41. 102, 125. — complexes, 28. — gold, size of particles, 23. — platinum, 5, 93, 115. optimum temperature, 93. — solutions, permanency of, 30. Colloids, action of electrolytes on, 31. — diffusibility of, 25, 30. — electric charge of, 26. — general properties of, 22. — hysteresis of, 26, — mutual precipitation, 28, 105. — osmotic pressure of, 25, 30, 31. Combination between catalyst and substrate, 6, 8, 63, 77. enzyme and substrate, 20, 52, 77, 78, 79. 92, 104, X09. products, 52, 77, 81. Comparing relative strengths of enzyme solutions, method of, 45. Complex colloidal systems, 32. Concentration (evaporation) of solutions of enzymes, 43. — of catalyst, 3, 20. — of enzyme, effect on rate of change, 79, 99, 102, 108, 109. as affecting final result, 17, 20, 64. no effect on equilibrium, 20, 64. — of substrate as affecting rate of change, 17, 81, 98. in relation to final result, 98. Condensation of aniline or mercury, 105. Conductivity, electrical, as method, 46. Configuration of surface in relation to ad- sorption, 105, 117. Congo-red, 24, 26, 29, 32, 104, 109, 120. Constitution of enzymes, 35. Copper-reducing power as method, 44. Coupled reactions, 141. Destruction of enzyme by heat, 96, 97. during reaction, 17, 19, 65, 66, 76, 89, 96. Detection of trypsin, 47. Dextrin, synthesis of, 57, 97. Dextrinase, 57, 97, 145. Diastase, 10, 97, 119. Diffusibility of colloids, 25, 30, — of enzymes, 25, 41, 126. Diffusion factor in heterogeneous reactions, 8, 90, 115. — temperature coefficient of, 90, 114. Dihydroxyacetone, 143. Dilatometer as method, 46. Directive action of catalyst and enzyme, 3, 15, 149- Disappearance of catalyst in reaction, 3, 5. Disintegration of cells for extraction of en- zymes, 40, 41. Dynamic point of view, 151. Electric charge of colloids, 26, 27. of enzymes, 27, 121. of solids in water, 26, 30. Electrical adsorption, 97, 105, 114, 120, 122. — conductivity of amino-acids, 46. as method, 17, 46. in trypsin action, 17, 46. Electrolytes, action of, in forming adsorption compounds, 121. — action on colloids, 31. on enzymes, 33, 102, 114, 120, 126. — effect on adsorption, 32, 121. — necessity for certain enzyme actions, 126. Electro-negative colloids, 26. Electro-positive colloids, 26. Emulsin, 20, 34, 44, 55, 56, 58, 70, 78, 80, 81, 82, 84, 93,102, 107, 117, 120, 127, 144, 149, 150, 151, 153, 154, 155. — acts in strong alcohol, 107. — in alimentary canal, 152. — in yeast, 56, 153. Energy change in enzyme^^action, 7, 112, 113. Enterokinase, 19, 133. Enzyme action, reversibility of, 49, 148. — no part of system in equilibrium, 20, 63. Enzymes act at different rates on different substrates, 150, 151, 155. at their surfaces, 25, 67, 81, 107, no, III. when insoluble, 90. — action of antiseptics on, 37, 103. — adsorption by, 49, 107. — as bye-products, 38. — as catalysts, 9, 10, ii. — as colloids, 8, 22, 33, 104. — as properties of matter, 36. — Bertrand’s view of constitution of, 35. — chemical nature of, 10, 33, 34, 35, 36, 42, 134- — definition of, ii, 139. — diffusibility of, 25, 41, 126. — effect of heat on, 21, 37, 96, 97, 138. — electric charge of, 27, 121. — instability of, 17, 26, 33, 64, 76, 96. — intracellular, 39, 40, 42.
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