- A oxyhaemoglobin
- B carboxyhaemoglobin
- C methaemoglobin
- D deoxyhaemoglobin
Correct answer: A. oxyhaemoglobin
Explanation: Oxygen binds haemoglobin to form oxyhaemoglobin in the lungs.
Concept context
The mechanics of breathing, lung volumes, gas transport in blood, the Bohr effect, and respiratory regulation.