Able to explain in detail the process of gaseous exchange at alveolus
- The partial pressure of oxygen in the air of alveoli is higher compared to the partial pressure of oxygen in the blood capillaries
- Therefore, oxygen diffuses across the surface of the alveolus and blood capillaries.
- Then oxygen will combine with haemoglobin to form oxyhaemoglobin
- Lastly this form will be transported to all parts of the body.
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