Other questions in this quiz

2. What can be found in the haem groups?

  • A single Na3+ atom
  • A single Fe2+ atom
  • Two Fe2+ atoms
  • Two Na3+ atoms

3. Why is confirmational change necessary?

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

4. What is oxygen tension/partial pressure?

  • The amount of oxygen in the tissue surrounding the erythrocytes
  • The amount of oxygen in the blood
  • The amount of oxygen in the tissue fluid
  • The amount of oxygen in the blood plasma

5. 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

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