P700

P700, or photosystem I primary donor, is a molecular dimer of chlorophyll ''a'' associated with the reaction-center of photosystem I in plants, algae, and cyanobacteria. ^[1]

23 relations: Adenosine triphosphate, Chlorophyll a, Cytochrome b6f complex, Dimerization (chemistry), Electrochemical gradient, Electron acceptor, Electron transfer, Energy level, Excited state, Ferredoxin, Ion, Iron–sulfur cluster, Nicotinamide adenine dinucleotide phosphate, P680, Photosynthetic reaction centre, Photosystem I, Photosystem II, Phytomenadione, Plastocyanin family of copper-binding proteins, Radiant energy, Reducing agent, Reduction potential, Wavelength.
Light reactions

Adenosine triphosphate

Adenosine triphosphate (ATP) is a nucleotide that provides energy to drive and support many processes in living cells, such as muscle contraction, nerve impulse propagation, and chemical synthesis.

See P700 and Adenosine triphosphate

Chlorophyll a is a specific form of chlorophyll used in oxygenic photosynthesis. It absorbs most energy from wavelengths of violet-blue and orange-red light, and it is a poor absorber of green and near-green portions of the spectrum. Chlorophyll does not reflect light but chlorophyll-containing tissues appear green because green light is diffusively reflected by structures like cell walls.

See P700 and Chlorophyll a

Cytochrome b6f complex

The cytochrome b6f complex (plastoquinol/plastocyanin reductase or plastoquinol/plastocyanin oxidoreductase) is an enzyme found in the thylakoid membrane in chloroplasts of plants, cyanobacteria, and green algae, that catalyzes the transfer of electrons from plastoquinol to plastocyanin: The reaction is analogous to the reaction catalyzed by cytochrome bc1 (Complex III) of the mitochondrial electron transport chain. P700 and cytochrome b6f complex are light reactions.

See P700 and Cytochrome b6f complex

Dimerization (chemistry)

In chemistry, dimerization is the process of joining two identical or similar molecular entities by bonds.

See P700 and Dimerization (chemistry)

Electrochemical gradient

An electrochemical gradient is a gradient of electrochemical potential, usually for an ion that can move across a membrane.

See P700 and Electrochemical gradient

Electron acceptor

An electron acceptor is a chemical entity that accepts electrons transferred to it from another compound.

See P700 and Electron acceptor

Electron transfer

Electron transfer (ET) occurs when an electron relocates from an atom or molecule to another such chemical entity.

See P700 and Electron transfer

Energy level

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

See P700 and Energy level

Excited state

In quantum mechanics, an excited state of a system (such as an atom, molecule or nucleus) is any quantum state of the system that has a higher energy than the ground state (that is, more energy than the absolute minimum).

See P700 and Excited state

Ferredoxin

Ferredoxins (from Latin ferrum: iron + redox, often abbreviated "fd") are iron–sulfur proteins that mediate electron transfer in a range of metabolic reactions. P700 and Ferredoxin are photosynthesis.

See P700 and Ferredoxin

Ion

An ion is an atom or molecule with a net electrical charge.

See P700 and Ion

Iron–sulfur cluster

Iron–sulfur clusters are molecular ensembles of iron and sulfide.

See P700 and Iron–sulfur cluster

Nicotinamide adenine dinucleotide phosphate

Nicotinamide adenine dinucleotide phosphate, abbreviated NADP or, in older notation, TPN (triphosphopyridine nucleotide), is a cofactor used in anabolic reactions, such as the Calvin cycle and lipid and nucleic acid syntheses, which require NADPH as a reducing agent ('hydrogen source').

See P700 and Nicotinamide adenine dinucleotide phosphate

P680

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. P700 and P680 are light reactions and photosynthesis.

See P700 and P680

Photosynthetic reaction centre

A photosynthetic reaction center is a complex of several proteins, pigments, and other co-factors that together execute the primary energy conversion reactions of photosynthesis. P700 and photosynthetic reaction centre are light reactions and photosynthesis.

See P700 and Photosynthetic reaction centre

Photosystem I

Photosystem I (PSI, or plastocyanin–ferredoxin oxidoreductase) is one of two photosystems in the photosynthetic light reactions of algae, plants, and cyanobacteria. P700 and photosystem I are light reactions and photosynthesis.

See P700 and Photosystem I

Photosystem II

Photosystem II (or water-plastoquinone oxidoreductase) is the first protein complex in the light-dependent reactions of oxygenic photosynthesis. P700 and Photosystem II are light reactions and photosynthesis.

See P700 and Photosystem II

Phytomenadione

Phytomenadione, also known as vitamin K1 or phylloquinone, is a vitamin found in food and used as a dietary supplement.

See P700 and Phytomenadione

Plastocyanin family of copper-binding proteins

Plastocyanin/azurin family of copper-binding proteins (or blue (type 1) copper domain) is a family of small proteins that bind a single copper atom and that are characterised by an intense electronic absorption band near 600 nm (see copper proteins).

See P700 and Plastocyanin family of copper-binding proteins

Radiant energy

In physics, and in particular as measured by radiometry, radiant energy is the energy of electromagnetic and gravitational radiation.

See P700 and Radiant energy

Reducing agent

In chemistry, a reducing agent (also known as a reductant, reducer, or electron donor) is a chemical species that "donates" an electron to an (called the,,, or). Examples of substances that are common reducing agents include hydrogen, the alkali metals, formic acid, oxalic acid, and sulfite compounds.

See P700 and Reducing agent

Reduction potential

Redox potential (also known as oxidation / reduction potential, ORP, pe, E_, or E_) is a measure of the tendency of a chemical species to acquire electrons from or lose electrons to an electrode and thereby be reduced or oxidised respectively.

See P700 and Reduction potential

Wavelength

In physics and mathematics, wavelength or spatial period of a wave or periodic function is the distance over which the wave's shape repeats.

See P700 and Wavelength

References

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

Also known as P 700.

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