Biology 9700 · AS & A Level · Proteins

Proteins — practice question

Evidence shows that the oxygen dissociation curves for haemoglobin in smaller mammals lie to the right of those for larger mammals. What does this imply about the haemoglobin of smaller mammals?

  • AAt low partial pressures of oxygen, it binds to oxygen more strongly than the haemoglobin of larger mammals.
  • BIt saturates with oxygen at lower partial pressures of oxygen than the haemoglobin of larger mammals.
  • CIt releases oxygen more easily than the haemoglobin of larger mammals.
  • DWhen the partial pressure of oxygen is high, it carries more oxygen than the haemoglobin of larger mammals.

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