P680
Sign in to saveP680, or photosystem II primary donor, is the reaction-center chlorophyll a molecular dimer associated with photosystem II in plants, algae, and cyanobacteria, and central to oxygenic photosynthesis.
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Encyclopedic overview
9 sectionsContents
- Etymology
- Components
- Action and function
- Excitation
- Charge separation
- Recovery of P680
- See also
- References
- Bibliography
P680, or photosystem II primary donor, is the reaction-center chlorophyll a molecular dimer associated with photosystem II in plants, algae, and cyanobacteria, and central to oxygenic photosynthesis.
== Etymology == Its name is derived from the word “pigment” (P) and the presence of a major bleaching band centered around 680-685 nm in the flash-induced absorbance difference spectra of P680/ P680+•.
Excerpted from Wikipedia’s “P680” article, available under the CC BY-SA 4.0 licence.