Respiratory pigment Respiratory pigment A respiratory pigment is a molecule, such as hemoglobin in humans and other vertebrates, that increases the oxygen-carrying capacity of the blood. The four most common invertebrate respiratory pigments are hemoglobin, hemocyanin, hemerythrin and chlorocruorin. Hemoglobin is bright red when oxygenated, and dark red(purplish) when deoxygenated, oxygenated hemocyanin is blue in colour, deoxygenated it is almost colourless. Oxygenated chlorocruorin turns from green to red, whereas oxygenated hemerythrin is a violet to pink colour and colourless when deoxygenated. Any of various coloured conjugated proteins, such as hemoglobin, occur in living organisms and function in oxygen transfer in cellular respiration.
This Is Colour of this, the band went on to tour the album and remained a popular live heavy music act all over the UK and began to tour Europe, they shined particularly in Leeds and London. Following the release of No Brainer, This Is Colour released two singles, "Make The Most" (Recorded and produced by Keir Atkinson, Little Massingham, Norfolk, 2010) and "Exhausting The Resource" (Recorded and produced by Keir Atkinson, LP, Bury St Edmunds, Suffolk, 2011), for which This Is Colour created their first music video, directed and edited by their guitarist Tom Cronin, with the help of photographer Jordan Green.