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GCSE Biology Paper 1 (9-1 Exams)

Concentration High Diffuses Alveolus Blood State Gases Exchanged

Front State what gases are exchanged from where to where in the alveoli by what process.
Back
  • Oxygen diffuses out of the alveolus (high concentration) into the blood (high concentration)
  • Carbon dioxide diffuses out of the blood (high concentration) into the alveolus (low concentration) to be breathed out.

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