Physical Education GCSE
Efficient exchange
What Efficient exchange means in Physical Education GCSE, as defined for OCR.
Definition of Efficient exchange
Check what you remember
Read the wording for your board, then hide it and explain Efficient exchange in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Made possible by a large total surface area, thin walls, a rich blood supply and a moist surface.
Topics that use Efficient exchange
- 1.1.d. The cardiovascular and respiratory systems - Structure and function of the respiratory system (OCR GCSE)
Related terms
- Alveoli
- Diaphragm structure and action
- Diffusion
- Gas exchange
- Intercostal muscle action
- minute ventilation
- Pressure and volume changes in the thorax
- tidal volume
Using Efficient exchange in the exam
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