Red Blood Cells & Haemoglobin Flashcards
1
Q
When will the O2 disassociation curve shift to the left?
A
pH is increased (alkaline)
Temp is decreased
1
Q
When will the O2 disassociation curve shift to the right?
A
pH is decreased (acidic)
Temp is increased
2
Q
Why do RBCs have a short lifespan?
A
Because simple cells, with no nucleus or mitochondria thus cannot repair itself
3
Q
What are young RBCs known as?
A
Reticulocyte
4
Q
What does Haemoglobin do?
A
Carries oxygen from lungs to tissues, where it transfers oxygen to myoglobin in muscles
5
Q
What does Oxygen bind to?
A
Fe2+ in haem reversibly
6
Q
What is Hb formed of?
Structure?
A
Formed of 2 alpha and 2 beta chains and 4 haem groups
Quaternary structure
