Biology A-Level
Alveolar and capillary adaptations for diffusion
What Alveolar and capillary adaptations for diffusion means in Biology A-Level, as defined for OCR.
Definition of Alveolar and capillary adaptations for diffusion
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Reference: OCR
Alveolar walls are thin and moist, giving a short diffusion distance and a large surface area, and capillaries have thin walls and a steep concentration gradient maintained by ventilation and blood flow.
Topics that use Alveolar and capillary adaptations for diffusion
- Exchange surfaces (OCR A-Level)
Related terms
- Adaptations of exchange surfaces
- Airway structure and support
- Antagonistic muscle action
- Concentration gradients
- Correct use of the light microscope
- Counter-current gas exchange in gills
- large surface area
- Maintaining concentration gradients
Using Alveolar and capillary adaptations for diffusion in the exam
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