CAIE IGCSE Biology EXTENDED 6.1.11 Explain the limiting factors
CAIE IGCSE Biology EXTENDED 6.1.11 Explain the limiting factors
Practise identifying limiting factors from photosynthesis graphs and explaining plateaus under changing light, CO2 or temperature.
How this is tested
- read graph regions to decide whether light intensity, CO2 or temperature is limiting
- explain why a photosynthesis curve rises then levels off as another factor becomes limiting
- apply controlled-variable reasoning when CO2 or temperature is supplied in excess