. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. B 400 500 600 700 800 900 Wavelength (nm). 400 500 600 700 800 900 Wavelength (nm) Figure 1. Reduction of vanadate(V) by the supernatant of a ho- mogenate of blood cells from Ascidia gemmata, as monitored by spec- trophotometry. A. Immediately after the start of the reaction. B. Thirty- one hours after the start of the reaction. Absorption spectrum of the supernatant of the homogenate of blood cells (a), of 8 vanadate(V) (b), and of 8 roA/ vanadyl(IV) (c). When an 8 mA/solution of vanadate( V) was added to the super
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. B 400 500 600 700 800 900 Wavelength (nm). 400 500 600 700 800 900 Wavelength (nm) Figure 1. Reduction of vanadate(V) by the supernatant of a ho- mogenate of blood cells from Ascidia gemmata, as monitored by spec- trophotometry. A. Immediately after the start of the reaction. B. Thirty- one hours after the start of the reaction. Absorption spectrum of the supernatant of the homogenate of blood cells (a), of 8 vanadate(V) (b), and of 8 roA/ vanadyl(IV) (c). When an 8 mA/solution of vanadate( V) was added to the supernatant, absorbance in the vicinity of 760 nm due to vanadyl(IV) increased (d). Thirty-one hours after the reaction, absor- bance at the shorter wavelength than 530 nm due to vanadate(V) de- creased and that at 760 nm became clear (d), suggesting that the added vanadate(V) was reduced to vanadyl(IV) by the supernatant. By contrast, addition of an 8 solution of vanadyK IV) to the supernatant resulted in little change in the absorption spectrum (e) both immediately after and 31 hours after the start of the reaction. The higher base line in the absorption spectrum of (d) than the others caused turbidity appeared when vanadate(V) solution was added to the 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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