Answer the following question given this paragraph: 

Hemoglobin is an example of a transport protein in the blood. You can see how it works in Figure below . The heme parts of a hemoglobin molecule bind with oxygen. Each red blood cell has hundreds of hemoglobin molecules. This is how oxygen is carried in the blood to cells throughout the body.


Q: The heme parts of a hemoglobin molecule bind with what element?


A:
oxygen