What is the role of hemoglobin?

Answer 1

Hemoglobin refers to a protein, found in red blood cells, that is responsible for carrying oxygen from the lungs to all other tissues of the body. Red blood cells circulate through the lungs and the hemoglobin in these cells pick up (bind with) oxygen. These cells carry the oxygen, in a form called oxyhemoglobin, out to the tissues and cells of the body. Once at the proper destination, the oxy hemoglobin releases the oxygen and becomes hemoglobin again. The red blood cells, carrying hemoglobin (without oxygen), circulate back to the lungs to pick up more oxygen, and the process begins again.

Hemoglobin also refers to a blood test that indicates the amount of hemoglobin in the blood, and thus, how well the red blood cells are able to carry oxygen to the rest of the body

Answer 2

Hemoglobin is a protein which is contained in red blood cells. You can imagine red blood cells as little bags filled with hemoglobin.

When red blood cells pass through the lungs, they get very close to the air that you breathe in. This allows the hemoglobin inside them to bind oxygen from the air. The red blood cells then circulate around the body. When they reach a body part that is low in oxygen, it automatically drops off their hemoglobin. This way, red blood cells supply the entire body with oxygen.

Hemoglobin has a red color. It's the reason why red blood cells are red - and red blood cells are the reason why blood is red. Hemoglobin that has oxygen is a bit brighter red than hemoglobin without oxygen, so there is actually a color difference between oxygenated and non-oxygenated blood, but it's never actually blue like in books.

Answer 3

Hemoglobin carries oxygen in the blood. It is found in red blood cells.

Answer 4

to transport oxygen

Answer 5

Accumulating iron for red blood cells!

Answer 6

to speed up reactions

to transport oxygen

to slow down reactions

to provide structural support