Here are the key points about the function of haemoglobin and oxygen transport:
- Haemoglobin is a protein in red blood cells that contains iron.
- Its main function is to transport oxygen throughout the body.
- In the lungs, haemoglobin binds to oxygen and forms oxyhaemoglobin.
- Oxyhaemoglobin carries the oxygen through the bloodstream to tissues and organs.
- In tissues, oxyhaemoglobin releases the oxygen which then diffuses into cells for cellular respiration.
- Deoxygenated haemoglobin returns to the lungs to pick up more oxygen, completing the oxygen transport cycle.
- The iron in haemoglobin allows it to efficiently bind and carry oxygen due