Lecture 6-Oxygen in the Blood Flashcards
1
Q
Which properties of haemoglobin facilitate the transport of oxygen in the blood?
A
- 4 O2 molecules can bind to 1 Hb
- reversibly loads and unloads O2
- low affinity for O2 in T state
- high affinity in R state
- 4 subunits: tetramer of 2 alpha and 2 beta
2
Q
In which direction do lower pH, higher temperature and increased 2,3-BPG shift the oxygen dissociation curve?
A
Right
3
Q
What is cyanosis?
A
Bluish colour due to unsaturated Hb - peripheral or central
