PS I is the collection of pigments of chlorophyll, absorbing mostly the wavelength of light at 700 nm. What is the difference between Photosystem 1 and 2 What is Photosystem 1 The main difference between photosystem 1 and 2 is that PS I absorbs longer wavelengths of light (>680 nm) whereas PS II absorbs shorter wavelengths of light (<680 nm).ģ. Chlorophyll A-680 is the active reaction center of photosystem 2.
PS 2 contains chlorophyll B, chlorophyll A-660, chlorophyll A-670, chlorophyll A-680, chlorophyll A-695, chlorophyll A-700, phycobilins and xanthophylls. Chlorophyll A-700 is the active reaction center of PS 1. PS 1 contains chlorophyll B, chlorophyll A-670, Chlorophyll A-680, chlorophyll A-695, chlorophyll A-700 and carotenoids. Chlorophyll is the pigment involved in capturing light energy. Photosystem I (PS I) and photosystem II (PS II) are two multi-subunit membrane-protein complexes involved in oxygenic photosynthesis.
