Biology 9700 · AS & A Level · The microscope in cell studies

The microscope in cell studies — practice question

The diagram presents a spirometer trace showing tidal volume and vital capacity. What changes occur to the volumes labelled X and Y during moderate exercise?

  • Avolume X decreases; volume Y decreases
  • Bvolume X decreases; volume Y increases
  • Cvolume X increases; volume Y decreases
  • Dvolume X increases; volume Y increases

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