Protein Structure a quiz for edexcel on protein structure 4.0 / 5 based on 11 ratings ? BiologyBiological molecules, organic chemistry and biochemistryASEdexcel Created by: LizzyCreated on: 06-01-12 20:18 What is the primary structure? The sequence of amino acids in the polypeptide chain 1 of 9 What bonds are formed in the primary structure? Peptide bonds 2 of 9 What is the secondary structure? Hydrogen bonds form between the amino acids in the chain and so the structure coils into either alpha helix or beta pleated sheets 3 of 9 What bonds are formed that hold the secondary structure together? Hydrogen bonds that form between nearby amino acids, they create the alpha helix or beta pleated sheets 4 of 9 What bonds hold the tertiary structure together Ionic reaction, disulfide bonds, hydrophobic & hydrophilc interactions and hydrogen bonds 5 of 9 What is the Quaternary structure? where several different polypeptide chains are assembled together and this is their final 3D structure 6 of 9 What bonds holds the Quaternary structure together? It can be influenced by all the bonds in the tertiary structure as this structure is determined by the previous one 7 of 9 What are globular proteins? round, compact proteins made up of several different polypeptide chains 8 of 9 What is haemoglobin? a globular protein made of 4 polypeptide chains. It carries oxygen around the body in the blood 9 of 9
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