OCR Biology 'Proteins and Amino acids'

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1. What do amino acids contain?

  • Carbon, oxygen, nitrogen (+ phosphorous)
  • Carbon, hydrogen, oxygen, nitrogen (+ sulphur)
  • Carbon, hydrogen, oxygen
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2. What is the formula of the amino group?

  • NH
  • NH-3
  • NH-2
  • NH-4

3. An enzyme is an example of a _______ structure

  • Tertiary
  • Primary
  • Secondary

4. The function of a protein is determined by its _______ structure

  • Tertiary
  • Quaternary
  • Primary
  • Secondary

5. Which three types of bonds help tertiary structures maintain their shape?

  • Covalent peptide bonds and disulphide bonds
  • Ionic bonds, hydrogen bonds and disulphide bonds
  • Ionic bonds, covalent bonds and hydrogen bonds

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