Quantitative Laws in Biological Chemistry |
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according action agglutination agglutinin albuminous amboceptor ammonia animal antibodies antidiphtheric serum antigens antitoxin antivenin bacilli bacteria blood calc calculated values cane-sugar casein cent chemical chemistry coagulation compound concentration constant content of agglutinin corpuscles curve decomposed decomposition decrease degree of haemolysis diagram Fig digestion diphtheria poison diphtheria toxin egg-white EHRLICH enzyme equilibrium errors of observation erythrocytes ethyl butyrate experiments fermentation figures flesh following table formula gastric juice give given goat grammes guinea-pigs haemolysin haemolytic hydrochloric acid immunization increase incubation indicates injection invertase investigated lysin MADSEN Maja serum maltose manner minutes molecules NaOH nearly neutralization pancreatic juice pepsin peptone precipitate precipitin processes proportional qt-rule quantity of antitoxin rabbit red blood-corpuscles regarding rennet rule of SCHÜTZ saponification SCHÜTZ's rule secretion solution square root stomach straight line substances sugar temperature tetanolysin tion toxin trypsin undigested velocity of reaction vibriolysin yeast yeast-cells ΙΟ
Popular passages
Page vi - I am convinced that biological chemistry cannot develop into a real science without the aid of the exact methods offered by physical chemistry. The aversion shown by biochemists, who have in most cases a medical education, to exact methods is very easily understood. . . . The physical chemists have found that the biochemical theories, which are still accepted in medical circles, are founded on...
Page 1 - ... basal relationship of chemistry to medicine. It is for this collective concept that I bespeak the consideration which it has received of few chemists and still fewer physicians. To be sure, chemistry has long occupied a more or less perfunctory position in the curricula of medical colleges — becom2 " As long as only qualitative methods are used in a branch of science, this can not rise to a higher stage than the descriptive one.
Page 75 - The different lifetime of the different bacteria does not, therefore, depend in a sensible degree on their different ability to resist the destructive action of the poison. Instead of this a certain fraction of the bacilli still living dies in one second, independent of the time during which they have been in contact with the poison.
Page 74 - There is no doubt that the different cells in a sample of bacteria or red blood-corpuscles possess a different power of resistance to deleterious substances.
Page 33 - The compounds of enzyme and reacting substance seem to play a very important role in this domain, and there is still much work to be done in order to elucidate the consequences of this circumstance.
Page v - THE development of chemical science in the last thirty years shows a steadily increasing tendency to elucidate the nature and reactions of substances produced by living organisms.
Page 89 - ... was nearly proportional to the square root of the concentration of the...
Page 57 - No essential difference exists between the processes studied in general chemistry and those produced by living organisms or enzymes.
Page 17 - As has been said above, it is physical chemistry which gives us the mighty instrument for these investigations.
Page 2 - Only by the use of the methods introduced by the modern physical chemistry is it possible to form an opinion of the manner in which these substances react, and thereby to get a clear scientific idea of their nature.