Other questions in this quiz

2. Why is confirmational change necessary?

  • It prevents extra molecules from associating with the haem groups
  • The next two molecules will find it easier to associate with the haem groups
  • All the other molecules will find it easier to associate with the haem groups
  • The next molecule will find it easier to associate with the haem groups

3. What does "Fe2+ has an affinity for oxygen" mean?

  • The atoms repel oxygen molecules
  • Each atom can attract and hold one oxygen molecule
  • Each atom can attract and hole many oxygen molecules
  • The atoms all try to bind with oxygen molecules

4. What type of molecule is haemoglobin?

  • Fatty acid
  • Protein
  • Carbohydrate
  • Amino acid

5. How many subunits, each containing a polypepticle chain and a haem group, does haemoglobin have?

  • 12
  • 4
  • 8
  • 2

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