BRAINCAKEBreathing Rate and Ventilation Rate
The breathing rate and tidal volume depend on the activity of a person.
The breathing rate is the number of breaths taken per minute.
The ventilation rate is the total volume of air inhaled in one minute.
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Key terms in this lesson
- ventilation
- The movement of air into and out of the lungs, which maintains a diffusion gradient across the gas exchange surface.
- tidal volume
- The volume of air taken into or out of the lungs during one resting breath.
More in Exchange Surfaces and Breathing
- Asthma
- The First Breath
- Measuring Lung Capacity
- Lung Volume
- Gas Exchange in Unicellular Organisms
- Gas Exchange in Insects
- Diffusion Gradient
- Mass Transport
All 24 lessons in Exchange Surfaces and Breathing · All OCR AS-level Biology topics