OCR Biology 'Proteins and Amino acids'

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1. Which bonds hold the alpha helix together?

  • Hydrogen bonds between the -NH and -CO groups
  • Hydrogen bonds between the -NH groups
  • Ionic bonds
  • Covalent peptide bonds
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Other questions in this quiz

2. A quaternary structure is made up of ________ polypeptide chain

  • More than one
  • One

3. Is the acid group acidic or basic?

  • Basic
  • Acidic

4. What bond is formed when amino acids join together by condensation?

  • A disulphide bond
  • A covalent peptide bond
  • An ionic peptide bond
  • A glycosidic bond

5. What is a polypeptide?

  • A larger structure consisting of multiple amino acids
  • A bond between two amino acids
  • A multiple peptide bond


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