Definition of respiratory pigment in English:

respiratory pigment

Line breaks: re¦spira|tory pig|ment

noun

Biochemistry
  • 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.
    More example sentences
    • 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.
    • Massed red blood corpuscles are red in color owing to the presence of the respiratory pigment hemoglobin.
    • 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.

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Word of the day milord
Pronunciation: məˈlôrd
noun
used to address an English nobleman