More primitive species (like the octopus, squid, and a number of other invertebrates) use a different protein, called hemocyanin, which relies on copper, rather than iron, as the binding mineral of choice.


We need you to answer this question! 7) Octopuses have blue blood. When copper binds with oxygen, the discoloration is different, resulting in the blue color of their blood. Asked by Modesta Steuber. Both squids and octopuses have blue blood.Their blood is this colour because they use an oxygen-carrying molecule in their blood that contains copper. This copper base is more efficient at transporting oxygen then hemoglobin when water temperature is very low and not much oxygen is around. This is contrast with the mammalian haemoglobin the iron rich pigment. Hemocyanin is a blood-borne protein containing copper atoms that bind to an equal number of oxygen atoms. Several species of octopus have blue, rather than red, fluid running through their veins.

What is an octopus's blood color? If you know the answer to this question, please register to …

For oxygen transfer in the body of octopus the protein made from copper serve the function. Marine Biology.

This has the blue colour.
Asked in Squid How does changing colour to match the rocks help the octopus … It's part of the blood plasma in invertebrates. To survive in the deep ocean, octopuses evolved a copper rather than iron-based blood called hemocyanin, which turns its blood blue.

The ability is literally in their blood. Octopus. The same pigment that gives the octopus blood its blue color, hemocyanin, is responsible for keeping the species alive at extreme temperatures. Which is efficient than other oxygen carriers. The octopus has a closed circulatory system, which means that all their blood is confined to vessels.