Biology 9700 · AS & A Level · Proteins

Proteins — practice question

If an athlete smokes immediately before a race, they may be unable to run at full speed because the blood transports less oxygen. Which explanation is correct?

  • ACarbon dioxide binds to haemoglobin forming carbaminohaemoglobin.
  • BCarbon dioxide binds to haemoglobin forming carboxyhaemoglobin.
  • CCarbon monoxide binds to haemoglobin forming carbaminohaemoglobin.
  • DCarbon monoxide binds to haemoglobin forming carboxyhaemoglobin.

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