1. How many subunits, each containing a polypepticle chain and a haem group, does haemoglobin have?
1 of 14
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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 are erythrocytes?
- Red blood cells
- Proteins found in tissue fluid
- White blood cells
- Plasma molecules
4. Where are oxygen molecules taken up by the haem group?
- In the erythrocytes
- In the white blood cells
- In the tissue fluid
- In the plasma
5. What is confirmational change?
- When the shape of the haemoglobin changes.
- When the shape of the haemoglobin changes in order to encourage oxygen molecules to associate with it
- 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