This effect contributes the ability of hemoglobin to bind oxygen reversibly under biological conditions.

HbF then delivers that bound oxygen to tissues that have even lower partial pressures where it can be released.

It is capable of undergoing oxidation and reduction, but does not bind oxygen.

They bind oxygen, and act to initiate an aerotactic response or regulate gene expression.

Myoglobin is a molecule that binds oxygen.

Myoglobin and hemoglobin are globular proteins that serve to bind and deliver oxygen.

Their blue blood hemocyanin binds and transports oxygen most efficiently, aided by gills with especially large surface area.

Their blue blood's hemocyanin binds and transports oxygen more efficiently than in other cephalopods, aided by gills with especially large surface area.

Like natural blood hemoglobin, perfluorocarbons can bind oxygen drawn from the lungs and transport it to the tissues that need it.

Myoglobin is a protein that is able to bind oxygen.