Variety Of Life Flashcards
Secondary structures of haemoglobin
Polypeptide chains coiled into helix
Primary structure of haemoglobin
4 polypeptide chains
Tertiary structure of haemoglobin
Each polypeptide chain is folded into a specific shape allowing it to carry oxygen
Quaternary structure of haemoglobin
4 polypeptide chains link together each polypeptide having a haem group
What is the role of haemoglobin
Found in red blood cells
It carries oxygen
How is haemoglobin efficient to carry oxygen
- readily loads with oxygen at exchange surface
* readily unloads from oxygen at tissues
When haemoglobin is oxygen bound
OXYHAEMOGLOBIN
where does haemoglobin LOAD/ASSOCIATE?
@ LUNGS (combines+picks up)
Where does haemoglobin UNLOAD/DISSOCIATE
@ TISSUES (releases oxygen)
When the curve is towards the right
LOW AFFINITY OF O2
When the curve is towards the left
HIGH AFFINITY OF O2