Outline5 marksStandard
A student investigated the absorption of light by chlorophyll a and chlorophyll b. The table shows the percentage absorption at different wavelengths.
| Wavelength (nm) | Chlorophyll a absorption (%) | Chlorophyll b absorption (%) |
|---|---|---|
| 430 | 85 | 70 |
| 480 | 20 | 60 |
| 540 | 10 | 15 |
| 580 | 15 | 10 |
| 620 | 30 | 20 |
| 660 | 70 | 40 |
| 680 | 55 | 30 |
Outline how the absorption of light by chloroplast pigments leads to the production of ATP and reduced NADP in the light-dependent stage, and how these products are used in the Calvin cycle.