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A substance (such as haemoglobin or haemocyanin) with a molecule consisting of protein with a pigmented prosthetic group, involved in the physiological transport of oxygen or electrons.
- ‘Thus, contrary to the insects, the evolution of a tracheal system in the Myriapoda was not accompanied by the loss of respiratory pigments in the hemolymph.’
- ‘Massed red blood corpuscles are red in color owing to the presence of the respiratory pigment hemoglobin.’
- ‘This article addresses a presentation of a new and complete multigenic family of extracellular globins in R. pachyptila and a possible scenario of duplication events that explains the evolution of such a peculiar respiratory pigment.’
- ‘Whereas Adrianov and Malakhov suspect the electron-dense material in the body cavity to represent respiratory pigments, Neuhaus assumes such pigments in the osmiophilic vesicles of the amoebocytes.’
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