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Hemoglobin contains a heme group with an Iron ion attached to it. The iron is what binds to O2.

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15y ago
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14y ago

There is an Fe2+ (iron) within the heme portion of hemoglobin. It binds exactly one molecule of oxygen.

This means that each hemoglobin can bind 4 oxygen molecules.

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10y ago

The iron in the hemoglobin is the site of the oxygen binding. Each iron can bind one O2 molecule, therefore the hemoglobin molecule is capable of binding a total of four O2 molecules.

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Q: What portion of hemoglobin molecule binds oxygen?
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Related questions

What is a protein that binds with oxygen molecules?

Hemoglobin binds with oxygen molecules. Hemoglobin is a protein molecule.


WHen hemoglobin binds its first oxygen molecule it is easier for other?

after one oxygen molecule binds to hemoglobin, it is easier for the other molecules to bind to the hemoglobin. this is known as cooperative binding.


Which molecule rries or binds oxygen?

The molecule that carries oxygen in the human body is hemoglobin, which is found in red blood cells. Hemoglobin binds to oxygen in the lungs and transports it to tissues throughout the body.


What part of the hemoglobin molecule actually binds the oxygen molecule?

The heme group within the hemoglobin molecule is what actually binds to the oxygen molecule. This process involves the iron atom within the heme group forming a reversible coordination bond with the oxygen molecule.


What does Each hemoglobin molecule contains an atom of iron that binds reversibly with?

oxygen


What is the name of the thing in our blood that transport oxygen?

Red blood cells are packed full of a protein called hemoglobin. Hemoglobin has a molecule of iron in each protein molecule. This hemoglobin is what carries oxygen. The oxygen binds with the iron.


How is oxygen transferred to the cell?

Oxygen is transferred to the cells by our red blood cells which have a special molecule called hemoglobin inside. The hemoglobin molecule binds to the oxygen molecule and the reb blood cells transports the oxygen to wherever it is needed.


What is the molecule in red blood cells that carries oxygen?

The molecule in red blood cells that carries oxygen is hemoglobin. Hemoglobin is a protein that binds to oxygen in the lungs and carries it to tissues throughout the body.


How is transported oxygen by blood in animals?

Oxygen binds to a molecule called hemoglobin in red blood cells.


What molecule binds oxygen?

The molecule that bind oxygen in the blood stream is hemoglobin. The O2 attaches to the molecule allowing it to be carried around the body to the other cells.


What is the molecule that binds oxygen red blood cells?

Hemoglobin is the molecule that binds oxygen in red blood cells. It consists of four protein subunits, each containing a heme group that can bind to oxygen molecules.


Oxygen binds with hemoglobin in the blood to form?

oxygen binds with hemoglobin in the lungs and forms oxyhemoglobin.