Read absorption and action spectra, distinguish reflected from absorbed wavelengths and relate pigment diversity to underwater photosynthesis.
Chloroplasts are involved in both the light-dependent reactions and light-independent reactions of photosynthesis.
An absorption spectrum shows how much light is absorbed by chloroplasts at different wavelengths of light.
The table shows the colour of light at four wavelengths.
Which wavelength of light is absorbed the least by chloroplasts?
□ A 460 nm
□ B 520 nm
□ C 600 nm
□ D 680 nm
State what is meant by the term action spectrum.