Maintaining concentration gradients
What Maintaining concentration gradients means in Biology A-Level, as defined for OCR.
Definitions of Maintaining concentration gradients
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Reference: OCR
A steep concentration gradient is maintained by ventilation, by blood flow, or by active transport, so substances keep moving across.
Ventilation moves air in and out of the lungs to maintain steep concentration gradients of oxygen and carbon dioxide at the alveoli.
Topics that use Maintaining concentration gradients
- Exchange surfaces (OCR A-Level)
Related terms
- Adaptations of exchange surfaces
- Airway structure and support
- Alveolar and capillary adaptations for diffusion
- Antagonistic muscle action
- Concentration gradients
- Correct use of the light microscope
- Counter-current gas exchange in gills
- large surface area
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