its a protein that is the main part of and resides in your red blood cells. The protein contains iron that carries oxygen to the cells.
to transport oxygen
The hemoglobin gives the cells its reddish hue and carries oxygen in the cell.
Hemoglobin carries the oxygen molecules into the bloodstream.
Iron, found in hemoglobin.
Respiratory system
The primary role of hemoglobin is to carry oxygen. This molecule is transported from the lungs to the tissues that need it.
Catalyzs
It plays a role for making sugar for our body and we need it in our body in order to have sugar.
all above
Iron is necessary to form hemoglobin in red blood cells. Hemoglobin is essential to allow the blood to carry oxygen to all the cells in the body. So iron plays an essential role in making the human body function and is located in the blood to allow it to do its job.
Adenosine triphosphate
liver