photosystem I
noun see photosystem

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • photosystem I — The photosystem in eucaryotic cells that absorbs longer wavelength light, usually greater than about 680 nm, and transfers the energy to chlorophyll P700 during photosynthesis; it is involved in both cyclic photophosphorylation and noncyclic… …   Dictionary of microbiology

  • photosystem I — noun see photosystem …   Useful english dictionary

  • photosystem I — Photosynthetic system in chloroplasts in which light of up to 700nm is absorbed and its energy used to bring about charge separation in the thylakoid membrane. The electrons are passed to ferredoxin and then used to reduce NADP+ to NADPH (non… …   Dictionary of molecular biology

  • Photosystem — Photosystems (ancient Greek: phos = light and systema = assembly) are protein complexes involved in photosynthesis. They are found in the thylakoid membranes of plants, algae and cyanobacteria (in plants and algae these are located in the… …   Wikipedia

  • Photosystem — Übergeordnet Thylakoid Untergeordnet Photosystem I Photosystem II …   Deutsch Wikipedia

  • Photosystem II — Übergeordnet Photosystem Untergeordnet Photosystem II Reaktionszentrum Lichtsammelkomplex II …   Deutsch Wikipedia

  • photosystem — noun Date: 1964 either of two photochemical reaction centers consisting chiefly of photosynthetic pigments complexed with protein and occurring in chloroplasts: a. one that absorbs light with a wavelength of about 700 nanometers called also… …   New Collegiate Dictionary

  • photosystem — ˈtü noun Etymology: phot + system : either of two photochemical reaction centers occurring in chloroplasts that consist chiefly of photosynthetic pigments (as chlorophyll) complexed with protein which absorb light energy and convert it to… …   Useful english dictionary

  • photosystem II — Photosynthetic system in chloroplasts in which light of up to 680nm is absorbed and its energy used to split water molecules, giving rise to a high energy reductant, Q , and oxygen. The reductant is the starting point for an electron transport… …   Dictionary of molecular biology

  • Photosystem — Pho|to|sys|tem I, II ↑ Photosynthese …   Universal-Lexikon

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