photosystem
/ˈfəʊtəʊˌsɪstəm
/noun
A biochemical mechanism in plants by which chlorophyll absorbs light energy for photosynthesis. There are two such mechanisms (photosystems I and II) involving different chlorophyll-protein complexes.In photosystem II, a different chlorophyll-protein complex absorbs light at the wavelength of 680 nm....
- Both types of photosystems differ in size, pigment and protein composition, and charge.
- In higher plant chloroplasts, many pigment-binding proteins are inserted into the thylakoid membrane and organized into multisubunit complexes called photosystems.
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