A2: Controlling the Breathing Rate. The role of the respiratory centre.

A complete lesson to introduce the idea of how exercise can increase the rate of ventilation to remove the build up of carbon dioxide. It looks at the negative feedback systems involved which maintain breathing rate.
It also introduces spirometer traces and the definitions which which will lead to the core practical (edexcel IAL).
There are plenty of discussion opportunities, a video and an exam question for self assessment.

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  • Controlling-breathing-rate.pptx

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Created: Feb 19, 2018

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