Gas Exchange 0.0 / 5 ? BiologyGas ExchangeInternational BaccalaureateAll boards Created by: janabuchanCreated on: 08-11-17 13:10 Ventilation The exchange of air between the atmosphere and the lungs – achieved by the physical act of breathing 1 of 5 Gas Exchange The exchange of oxygen and carbon dioxide between the alveoli and bloodstream (via passive diffusion) 2 of 5 Cell Respiration The release of energy (ATP) from organic molecules – it is enhanced by the presence of oxygen (aerobic) 3 of 5 Alveoli the site of gas exchange 4 of 5 Pneumocytes (or alveolar cells) are the cells that line the alveoli and comprise of the majority of the inner surface of the lungs 5 of 5
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