CAIE IGCSE Biology EXTENDED 11.1.10 Link between physical activity
CAIE IGCSE Biology EXTENDED 11.1.10 Link between physical activity
Practise linking exercise to breathing changes by reading graphs and explaining how blood CO2 is detected to increase breathing rate and depth.
How this is tested
- interpret breathing graphs to link exercise with increased CO2 in the blood
- explain how the brain detects blood CO2 and raises breathing rate and depth
- distinguish CO2 stimulus from oxygen concentration distractors in MCQs