Haemoglobin and the carriage of oxygen

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  • Created by: emily_w
  • Created on: 18-11-14 14:18

1. What is confirmational change?

  • When the shape of the haemoglobin changes.
  • When the shape of the haemoglobin changes once the first oxygen molecule has associated
  • When the shape of the haemoglobin changes due to a change in the pO2
  • When the shape of the haemoglobin changes in order to encourage oxygen molecules to associate with it
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2. What is dissociation?

  • When the Fe2+ molecules are released from the haem groups
  • When oxyhaemoglobin is formed.
  • When the oxygen is released from the oxyhaemoglobin
  • When the Fe2+ join the haem groups

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

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

4. What is oxygen tension/partial pressure?

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

5. Where are oxygen molecules taken up by the haem group?

  • In the tissue fluid
  • In the plasma
  • In the erythrocytes
  • In the white blood cells

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