Haemoglobin is able to bind with carbon dioxide, carbon monoxide and oxygen. Which statement about haemoglobin’s binding sites is correct?
- ACarbon dioxide and carbon monoxide bind to one site, oxygen binds to a different site.
- BCarbon dioxide and oxygen bind to one site, carbon monoxide binds to a different site.
- CCarbon monoxide and oxygen bind to one site, carbon dioxide binds to a different site.
- DCarbon monoxide, oxygen and carbon dioxide all bind to different sites.