CAIE IGCSE Biology EXTENDED 9.2.11 Effect of physical activity on
CAIE IGCSE Biology EXTENDED 9.2.11 Effect of physical activity on
Practise explaining why physical activity changes heart rate and interpreting exercise graphs, recovery data and heart activity traces.
How this is tested
- explain increased heart rate during exercise using oxygen, glucose and respiration demand
- interpret recovery or electrical activity graphs before, during and after exercise
- link adrenaline or CO2 changes to faster pulse rate during activity