Biology 9700 · AS & A Level · Transport of oxygen and carbon dioxide

Transport of oxygen and carbon dioxide — practice question

The table gives some of the consequences of smoking. Which row indicates the effect of nicotine and carbon monoxide?

  • Anicotine: decreases heart rate; carbon monoxide: decreases blood pressure
  • Bnicotine: increases blood flow to the feet; carbon monoxide: increases blood pressure
  • Cnicotine: increases blood pressure; carbon monoxide: combines with haemoglobin
  • Dnicotine: increases blood pressure; carbon monoxide: increases heart rate

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