What is the difference between chlorophyll-a & chlorophyll-b ?
Asked by monikas | 15th Jul, 2008, 12:34: PM
Chlorophyll-a is the primary photosynthetic pigment and chlorophyll-b is the accessory pigment that collects the solar energy to pass on to chlorophyll-a.
Chlorophyll a absorbs well at a wavelength of about 450 nm but its primary absorption is at 675nm in the long red wavelengths.
Chlorophyll b absorbs most effectively at blue 470 but also with shorter peaks at 430 and 640nm.
Chl-b differs from chl-a by its 7-formyl group.
All plants, algae, and cyanobacteria which photosynthesize contain chlorophyll a. Chlorophyll b, occurs only in green algae and in the plants.
Answered by | 15th Jul, 2008, 05:42: PM
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