Partial pressure gradient
What Partial pressure gradient means in Physical Education A-Level, as defined for AQA.
Definitions of Partial pressure gradient
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Reference: AQA
A difference in partial pressure between two regions, down which gas molecules move, with a larger gradient increasing gas exchange.
The difference in partial pressure that oxygen diffuses down, into the blood at the alveoli and into the cells at respiring tissues.
Topics that use Partial pressure gradient
- Cardiovascular system (AQA A-Level)
- Respiratory system (AQA A-Level)
Related terms
- Baroreceptors
- Chemoreceptors
- Proprioceptors
- Affinity for oxygen
- Airway narrowing
- Alveolar and muscle exchange
- Antagonistic action of the two divisions
- Anticipatory rise
Using Partial pressure gradient in the exam
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