. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. t° initial 20 40 60 80 100 120 TIME IN MINUTES 140 160 180 300 FIGURE 2. Changes in cellular K and Na in Tetrahymena after dilution of normal medium. Ordinate: cellular K and Na concentrations ( cells); abscissa: time (minutes). Open symbols: Ki ; solid symbols: Nai. Initial Ki and Na( (diamonds) are averages of values in normal medium. Dilutions were made at zero time. The extents of the dilutions of normal medium in the three experiments were as follows: triangles, 6-fold dilution; circles, 8-fold dilution; squares,
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. t° initial 20 40 60 80 100 120 TIME IN MINUTES 140 160 180 300 FIGURE 2. Changes in cellular K and Na in Tetrahymena after dilution of normal medium. Ordinate: cellular K and Na concentrations ( cells); abscissa: time (minutes). Open symbols: Ki ; solid symbols: Nai. Initial Ki and Na( (diamonds) are averages of values in normal medium. Dilutions were made at zero time. The extents of the dilutions of normal medium in the three experiments were as follows: triangles, 6-fold dilution; circles, 8-fold dilution; squares, 13-fold dilution. In order to demonstrate how intracellular K and Na are maintained over a range of medium concentrations, cells were allowed to equilibrate for at least 30 minutes in various dilutions of normal medium from two-fold to over 100-fold, the extreme dilution involving several distilled water washes. Figure 1 shows 120 -. 120 140 160 180 200 220 Normal K0 Normal Na0 K0 orNa0:mM FIGURE 3. K and Na content of Tetrahymena in media concentrated with KC1 or NaCl. Ordinate: cellular concentrations of K and Na ( cells); abscissas: concentrations of K and Na in the media. Open circles: Ki ; solid circles: Na,. a and b: ordinate intercepts of the linearly increasing portions of the Na and K curves, respectively. Points for Ki and Nai in normal and diluted media are taken from Figure Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
