Author: Aaron Mullally

This lesson will describe the role of hemoglobin in the transport of oxygen in your blood.

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  • Hemoglobin

    A quaternary pigment protein found on red blood cells, hemoglobin is primarily used to transport oxygen and some carbon dioxide throughout the blood.

  • Oxyhemoglobin

    The term used to describe when oxygen is bound to hemoglobin; oxygen + hemoglobin = oxyhemoglobin.

  • Globin

    A term used to describe the protein structure of hemoglobin.

  • Heme Group

    This is the iron group in the center of each globular protein in a hemoglobin molecule; therefore one hemoglobin molecule has four heme groups associated to it. The heme group is what oxygen binds to when red blood cells are circulating oxygen throughout the body.

  • Iron

    The actual iron atom within the heme group to which oxygen binds.