Respiratory pigment

A respiratory pigment is a metalloprotein that serves a variety of important functions, its main being O2 transport.[1] Other functions performed include O2 storage, CO2 transport, and transportation of substances other than respiratory gases. There are four major classifications of respiratory pigment: hemoglobin, hemocyanin, erythrocruorin–chlorocruorin, and hemerythrin. The heme-containing globin[a] is the most commonly-occurring respiratory pigment, occurring in at least 9 different phyla of animals.[2]

  1. ^ Urich, Klaus (1994), Urich, Klaus (ed.), "Respiratory Pigments", Comparative Animal Biochemistry, Berlin, Heidelberg: Springer, pp. 249–287, doi:10.1007/978-3-662-06303-3_7, ISBN 978-3-662-06303-3, retrieved 2020-11-21
  2. ^ Hill, Richard W.; Wyse, Gordon A.; Anderson, Margaret (5 October 2017). Transport of Oxygen and Carbon Dioxide in Body Fluids (with an Introduction to Acid–Base Physiology). Sinauer Associates. ISBN 978-1605357379. Archived from the original on 1 November 2020. Retrieved 10 November 2020. {{cite book}}: |website= ignored (help)


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