wat is d diff btwn action spectrum & absorption spectrum of photosynth...
Absorption Spectrum
Action Spectrum
1. Absorption Spectrum is the graphic representation of the different wavelengths of light absorbed by the different pigments in a leaf during photosynthesis
1.Action Spectrum is the graphic representation of the effectiveness of different wavelengths of light in photosynthesis
2.Plot showing intensity of light absorbed relative to its wavelength
2.Plot showing relative efficiency of photosynthesis produced by light of different wavelengths
3.Explains the relationship between quality of light and absorbing capacity of pigments
3.Explains the relationship between photosynthetic activity in relation to different wavelengths of light
4.Chlorophyll absorb blue and red light
Carotenoids absorb violet and blue light
4.The maximum photosynthesis occurs in blue and red light
5.Absorption of different wavelengths of light by pigments can be measured using spectrophotometer.
5.In action spectrum, the rate of photosynthesis is measured as amount of carbon dioxide fixation, oxygen production, NADP+ reduction etc.