HYDROGEN-ION CONCENTRATION IN ITS RELATION TO WHEAT SCAB

Regulation of the Hydrogen Ion Concentration and Its Relation to Metabolism and Respiration in the Starfish

The normal reaction of the coelomic fluid in Patiria miniata and Asterias ochraceus is pH 7.6, and of the caeca, 6.7, compared with sea water at 8.3, all without salt error correction. A medium at pH 6.7-7.0 is optimum for the caeca for ciliary survival and digestion of protein, and is maintained by carbon dioxide production. The optimum pH found for carbon dioxide production is a true one for ...

Hydrogen ion concenteration of the root media in relation to transpiration rates

The Composition, Especially the Hydrogen Ion Concentration, of Sea Water in Relation to Marine Organisms

Since the extensive analyses of Forchhammer and Dittmar, the relative concentration of the chief salts in sea water has been accurately known, the differences in the results of different investigators only slightly exceeding the differences in the values of the atomic weights that they used. Omitting regions affected by land drainage and the melting of the polar ice caps, ocean surface salinity...

The Composition, Especially the Hydrogen Ion Concentration, of Sea Water in Relation to Marine Organisms

Since the extensive analyses of Forchhammer and Dittmar, the relative concentration of the chief salts in sea water has been accurately known, the differences in the results of different investigators only slightly exceeding the differences in the values of the atomic weights that they used. Omitting regions affected by land drainage and the melting of the polar ice caps, ocean surface salinity...

The Equilibrium between Hemolytic Sensitizer and Red Blood Cells in Relation to the Hydrogen Ion Concentration

1. In a salt-free medium the proportion of the total amount of hemolytic sensitizer present, combined with the homologous cells, reaches a maximum of almost 100 per cent at pH 5.3. On the alkaline side of this point the proportion combined diminishes with the alkalinity and reaches a minimum of approximately 5 per cent at pH 10. On the acid side of pH 5.3 the proportion combined diminishes with...