. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. RESPIRATION OF AMPHIUMA 215 oxygen dissociation curve at 43 ± 3 mm. of carbon dioxide (Table IV) and for comparison, points from similar data for the carp (Wastl, 1928), turtle (Southworth and Redfield, 1926), and man (P>ock, Field and .\dair, 1924). The respective curves arc calculated from the values of 70 c « o 60 150 0 40 1O 10. I-Corp blood at 1&°C. and , fenaion. O H- Amphiuma • • ;C. - 43*3 •• A HL-Tur-tle, - - 25"C. • 4O Q EZ'-Muman " •• 38X1 4O - • • 10 1O 25 O x. y tf fj n 50 FIG. 1
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. RESPIRATION OF AMPHIUMA 215 oxygen dissociation curve at 43 ± 3 mm. of carbon dioxide (Table IV) and for comparison, points from similar data for the carp (Wastl, 1928), turtle (Southworth and Redfield, 1926), and man (P>ock, Field and .\dair, 1924). The respective curves arc calculated from the values of 70 c « o 60 150 0 40 1O 10. I-Corp blood at 1&°C. and , fenaion. O H- Amphiuma • • ;C. - 43*3 •• A HL-Tur-tle, - - 25"C. • 4O Q EZ'-Muman " •• 38X1 4O - • • 10 1O 25 O x. y tf fj n 50 FIG. 1. Oxygen dissociation curves. The lines are calculated by Hill's equation and plotted using the ;; and A"0 values (Table V) from the original data (points). /; and K,, for the blood of each species, given in Table V. These con- stants in turn were obtained in the usual way by plotting log HbO2/Hb against log PCX, as in all cases, the points between approximately 10 to 90 per cent saturation fall quite closely on a straight line represented by the equation, HbO, log -~ - log A,, + n log P, from which the constants AT,, and n have been calculated. The con- formity of the experimental observations (points) with the equation of Hill (lines) shows that Hill's equation holds reasonably well within the limits specified for these divergent species. Ani^hiuma resembles human blood in showing an " S ' shaped oxygen dissociation curve which is absent in the carp and turtle. It is well known that the ' S " shaped curve is associated with high values of N (greater than ). This is apparent from the comparison of the curves of these four. 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. )
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
