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Hemoglobin

Hemoglobin

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

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Tutorial
Terms to Know
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.

Hemoglobin

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

Iron

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

Oxyhemoglobin

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