The increase in temperature results in higher enzyme activity yet the decrease in hemocyanin affinity allows enzyme activity to remain constant and maintain homeostasis.
42.
Unlike hemoglobin, the hemocyanin is not bound to cells but is simply dissolved in the hemolymph, the fluid part of the blood.
43.
;Hemocyanin : The second most common oxygen-transporting protein found in nature, it is found in the blood of many arthropods and molluscs.
44.
Hemocyanin is made of many individual subunit proteins, each of which contains two copper atoms and can bind one oxygen molecule ( O 2 ).
45.
The protein hemocyanin is the oxygen carrier in most mollusks and some arthropods such as the horseshoe crab ( " Limulus polyphemus " ).
46.
Their blue blood's hemocyanin binds and transports oxygen more efficiently than in other cephalopods, aided by gills with an especially large surface area.
47.
:: It could be that hemocyanin would have been more efficient in the early seas which where oxygen poor, than iron based oxygen carriers.
48.
In molluscs and crustaceans, copper is a constituent of the blood pigment hemocyanin, replaced by the iron-complexed hemoglobin in fish and other vertebrates.
49.
The structural mimicry of certain copper proteins ( e . g . hemocyanin, tyrosinase and catechol oxidase ), containing type-3 copper binding sites, has been shown.
50.
To stabilize oxygen binding at low ionic concentrations, the crab increases its internal pH ( decreasing the hydrogen ion concentration ) to allow the hemocyanin to continue to function efficiently.
