. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. NUTRIENT TRANSPORT IN STARFISH 395 O8 06 en .£ c oj E O4 >03 02 c o t~> 1J "01 009 008 007 006 00? 0 1 k = I. = 226 hours. O 4 5 6 7 8 9 10 11 12 hours Glucose in Coelomic Fluid FIGURE 2. The rate of absorption of glucose-C14 from pooled, cell-free coelomic fluid by digestive glands in two experiments. coelomic fluid (Fig. 2). In both cases the plotted data fitted a simple exponential function indicating that the rates of absorption were principally dependent on the concentrations of the trac


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. NUTRIENT TRANSPORT IN STARFISH 395 O8 06 en .£ c oj E O4 >03 02 c o t~> 1J "01 009 008 007 006 00? 0 1 k = I. = 226 hours. O 4 5 6 7 8 9 10 11 12 hours Glucose in Coelomic Fluid FIGURE 2. The rate of absorption of glucose-C14 from pooled, cell-free coelomic fluid by digestive glands in two experiments. coelomic fluid (Fig. 2). In both cases the plotted data fitted a simple exponential function indicating that the rates of absorption were principally dependent on the concentrations of the tracer in the medium. The curves fitted to the data were calculated from the equation (Comar, 1955). A = Aoe-kt, wlu-re- A -- the amount of activity present at time "/" ; Ao = the amount of activity present at zero time; k ---- the constant representing the fractional rate of change of "^4" with time. The time required to remove one-half the tracer, the "hall value time", ( / i j), may be calculated from the expression, Tlf, = log 1 2 The half value time for the absorption of glucose-C14 by digestive glands in sea water was hours; in coelomic fluid it was 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