Physical Education A-Level
Diffusion gradients
What Diffusion gradients means in Physical Education A-Level, as defined for AQA.
Definition of Diffusion gradients
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Reference: AQA
Partial pressure differences drive the passive diffusion of gases, with oxygen and carbon dioxide moving down these gradients at the alveoli and muscles.
Topics that use Diffusion gradients
- Respiratory system (AQA A-Level)
Related terms
- Airway narrowing
- Alveolar and muscle exchange
- Baroreceptor
- Baroreceptors
- Carbon monoxide, oxygen transport and aerobic capacity
- Chemoreceptor
- Chemoreceptors
- Chemoreceptors and sensory detection
Using Diffusion gradients in the exam
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