. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 392 THOMAS, POWLES AND LODGE 700r 600 c o 500 I /.OO cr O 300 200 100 • TRIS BUFFER DAYS 0-3 o ,, M ,- 0-6 x ,, ,, ,, 0-9 A BORATE M ,, 0-3 ,, .. ,, 0-6. 10 25 50 75 NH, FIGURE 3. Percentage growth rate achieved by snails relative to that of control snails when subjected to various concentrations of ammonia in tris or borate buffers. X 10-3 to >: 10-1, X lO3 to X 1O1, X 10- to and X 10'1 to /xg/ml respectively. DISCUSSION The net movement of ammonia across barriers depends on the p
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 392 THOMAS, POWLES AND LODGE 700r 600 c o 500 I /.OO cr O 300 200 100 • TRIS BUFFER DAYS 0-3 o ,, M ,- 0-6 x ,, ,, ,, 0-9 A BORATE M ,, 0-3 ,, .. ,, 0-6. 10 25 50 75 NH, FIGURE 3. Percentage growth rate achieved by snails relative to that of control snails when subjected to various concentrations of ammonia in tris or borate buffers. X 10-3 to >: 10-1, X lO3 to X 1O1, X 10- to and X 10'1 to /xg/ml respectively. DISCUSSION The net movement of ammonia across barriers depends on the partial pressure, PNIIS, on each side of'the membranes and occurs from higher to lower tensions. It TABLE III The mean pH values in the various treatments at different times. T0, TI, T2 and T3 correspond with the times when the snails were weighed. The values at time T0 are therefore the initial values and those at TI, T2, T3 are the values after the snails had conditioned the media for consecutive three day periods. Time when Concentration (/*g/ml NHa) Medium taken 0 i 10 25 50 75 100 SSVV(l) (To k IT, T Us SSW(2) ("To IT, 1 T 1 2 ITS 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
