Why does oxygen bind to haemoglobin easier the second time?

Binding the first oxygen molecule leads to a change in the tertiary structure of haemoglobinThis uncovers the second haem binding site for another oxygen molecule to attach

Related Biology A Level answers

All answers ▸

What is an immobilised enzyme and what are the advantages of their use?


Can you name the 3 different energy systems and give an example when each would be used?


Describe the series of events leading to atherosclerosis.


Explain how DNA is replicated and why this is important in biology.