In this video, Dr Mike explains the 2 ways that oxygen (O2) can be transported around the body;
Dissolved in plasma (12%)
Bound to haem in haemoglobin (98%)
And the 3 ways that carbon dioxide is transported around the body;
Dissolved in plasma (10%)
Bound to globin of haemoglobin (20%)
As bicarbonate ion (HCO3) (70%)