Biology › Section P · Breathing, circulation, and excretion › Topic P.3
Transport of gases in the blood
Getting oxygen into the blood is only half the job: it must be carried to every tissue and handed over where it is needed, while carbon dioxide travels the other way without turning the blood acidic. Haemoglobin and one fast enzyme make both possible.
In this topic
- Why plasma alone is not enough
- Haemoglobin: four seats for oxygen
- The S-shaped dissociation curve
- Worked example: how much oxygen do tissues receive?
- Shifting the curve: the Bohr effect
- Worked example: reading a right shift
- When carrying fails
- Carbon dioxide: three ways home
- The bicarbonate route, step by step
- Common mistakes to avoid
- Key takeaways
This topic is part of Wuanberri Pro. Checking your access…