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Index P700

P700, or photosystem I primary donor, (where P stands for pigment) is the reaction-center chlorophyll ''a'' molecule in association with photosystem I. Its absorption spectrum peaks at 700 nm. [1]

9 relations: Absorption spectroscopy, Biological oxidizer, Chlorophyll, Energy level, Ferredoxin, P680, Photosynthetic reaction centre, Photosystem I, Photosystem II.

Absorption spectroscopy

Absorption spectroscopy refers to spectroscopic techniques that measure the absorption of radiation, as a function of frequency or wavelength, due to its interaction with a sample.

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Biological oxidizer

A biological oxidizer is a device that uses micro-organisms to treat wastewater and the volatile organic compounds produced by commercial and industrial operations.

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Chlorophyll (also chlorophyl) is any of several related green pigments found in cyanobacteria and the chloroplasts of algae and plants.

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Energy level

A quantum mechanical system or particle that is bound—that is, confined spatially—can only take on certain discrete values of energy.

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Ferredoxins (from Latin ferrum: iron + redox, often abbreviated "fd") are iron-sulfur proteins that mediate electron transfer in a range of metabolic reactions.

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P680, or Photosystem II primary donor, (where P stands for pigment) refers to either of the two special chlorophyll dimers (also named special pairs), PD1 or PD2.

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Photosynthetic reaction centre

A photosynthetic reaction centre is a complex of several proteins, pigments and other co-factors that together execute the primary energy conversion reactions of photosynthesis.

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Photosystem I

Photosystem I (PS I, or plastocyanin-ferredoxin oxidoreductase) is the second photosystem in the photosynthetic light reactions of algae, plants, and some bacteria.

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Photosystem II

Photosystem II (or water-plastoquinone oxidoreductase) is the first protein complex in the light-dependent reactions of oxygenic photosynthesis.

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[1] https://en.wikipedia.org/wiki/P700

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