CAIE IGCSE Biology 6.1.7 Need for chlorophyll, light & carbon
CAIE IGCSE Biology 6.1.7 Need for chlorophyll, light & carbon
Practise interpreting starch tests and controlled leaf experiments that show the need for light, chlorophyll and carbon dioxide.
How this is tested
- interpret variegated leaf and covered-leaf diagrams using iodine starch-test results
- choose the control that shows carbon dioxide, light or chlorophyll is needed for photosynthesis