who is octopus blood shell blue explain briefly
Answers
Explanation:
The blue comes from a copper-rich protein called hemocyanin, which carries oxygen from the lungs to the bloodstream and then to the cells of the octopus's body. Hemoglobin, an iron-containing protein found in the blood of other animals—including humans—serves the same oxygen-transporting function but turns blood red.
Both hemoglobin and hemocyanin release their bound oxygen when they reach tissues that need it.
But for the Antarctic octopus Pareledone charcoti, transporting oxygen via hemocyanin poses problems at subzero temperatures.
That's because in polar waters oxygen binds so tightly to hemocyanin that it doesn't let go very easily. If these tissues can't get oxygen, the octopus will die.
A new study, published March 11 in the journal Frontiers in Zoology, shows that this cold-water critter overcomes the obstacles by producing an overabundance of hemocyanin.
To solve this frigid mystery, study leader Michael Oellermann, an ecophysiologist at the Alfred Wegener Polar Institute in Germany, compared P. charcoti with two other hemocyanin-carrying octopus species that live in warmer waters: Octopus pallidus and Eledone mosc