2007-11-08 09:48:58 · 0 answers · asked by Bran muffin 1 in Science & Mathematics ➔ Biology
Chlorophyll a (alpha) absorbs well at a wavelength of about 450 nm but its primary absorption is at 675nm in the long red wavelengths.
Chlorophyll b (beat) absorbs most effectively at blue 470 but also with shorter peaks at 430 and 640nm.
They both reflect the green wavelengths.
Alpha is the primary photosynthetic pigment and beta is the accessory pigment that collects the energy to pass on to chlorophyll alpha.
Beta differs from alpha by its 7-formyl group. Its main function is to collect energy but a secondary function is to regulate the antenna size.
Alpha occupies the reaction center of the antenna array. The array is made up of the core proteins surrounded by the peripheral proteins. Core proteins bind chlorophyll a and carotenoids. The peripheral proteins vary but land plants bind both alpha & beta on the peripheral proteins.
2007-11-08 10:43:03 · answer #1 · answered by gardengallivant 7 · 5⤊ 1⤋
Chlorophyll A And B
2016-10-30 01:51:32 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Chlorophyll a is C55H72O5N4Mg .
Chlorophyll b is C55H70O6N4Mg .
The absorbance spectrum is slightly different for these two pigments.
2007-11-08 10:07:30 · answer #3 · answered by ecolink 7 · 6⤊ 0⤋
Chlorophyll a is present in all photosynthetic organisms and is the green photosynthetic pigment. Chlorophyll b is an accessory pigment and absorbs different pigments than a. A absorbs energy from mostly blue-violet and orange-red wavelengths. B absorbs some energy from the green wavelengths.
2007-11-08 09:57:57 · answer #4 · answered by ctxsxoc 2 · 3⤊ 1⤋
what is the difference in their colour?
2015-01-05 04:29:55 · answer #5 · answered by Sarah Khalid 1 · 0⤊ 0⤋