Haemoglobin
- Created by: Rebecca Crackett
- Created on: 28-04-13 16:37
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- Haemoglobin
- A protein
- Carries oxygen around the body
- DIfferent species have different 'versions'
- Found in red blood cells
- (Hb)
- Has a quarternary structure
- Made up of 4 polypeptide chains
- Each chain has a haem group
- This contains iron and gives haemoglobin its red colour
- Has high affinity for oxygen - wants to carry it
- Can carry 4 oxygen molecules
- In the lungs, oxygen joins to haemoglobin
- This forms oxyhaemoglobin
- Reversible reaction
- oxygen dissociates from it
- Reversible reaction
- This forms oxyhaemoglobin
- Hb + 4O(2) <=> HbO(8)
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