Haemoglobin (AQA Unit 2) Unit 10, the variety of life. 4.0 / 5 based on 11 ratings ? BiologyBiological molecules, organic chemistry and biochemistryASAQA Created by: Kayleigh NicholsonCreated on: 27-02-12 16:39 What is the primary structure of haemoglobin? Four polypeptide chains 1 of 5 In which structure do the polypeptide chains become coiled into a helix? The secondary structure 2 of 5 What happens to the polypeptide chains during the tertiary structure? Each one is folded into a precise shape 3 of 5 How does haemoglobin load and unload oxygen into its structure They change shape 4 of 5 What happens to form the quaternary strucuture? The polypeptide chains are linked and gain a haem group 5 of 5
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