State whether true or false:
Haemoglobin has a higher affinity for oxygen than for carbon monoxide.

The correct option is B False
The affinity of haemoglobin for carbon monoxide is much higher than that for oxygen. The combination of haemoglobin and carbon monoxide results in the formation of a stable compound called carboxyhaemoglobin, which prevents haemoglobin from being available for oxygen transport.