Other questions in this quiz

2. In keratin the disulphide bonds are found in

  • cystine AAs
  • glycine AAs
  • cysteine AAs
  • methionine AAs
  • glycine and proline AAs

3. In human myoglobin and haemoglobin the haem group

  • contains Fe
  • contains Cu
  • contains Mg
  • contains Zn
  • is ligated to cysteine

4. In the definition of protein structures the alpha helix is defines as:

  • all of the things
  • primary structure
  • tertiary structure
  • secondary structure
  • quaternary structure

5. In proteins, peptide bonds are:

  • found only cystine moieties
  • formed between two AAs
  • found only in cysteine moieties
  • covalent links between different beta sheets
  • non-covalent linkes in alpha helices


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