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88 relations: Accessory pigment, Adenosine triphosphate, Allotropes of oxygen, Astrophysics, Atmospheric chemistry, Atom, Biological oxidizer, Biosphere, Black-body radiation, Carbon dioxide laser, Chemical compound, Chemical reaction, Chlorofluorocarbon, Chlorophyll, Chloroplast, Cofactor (biochemistry), Coherence (physics), Cyanobacteria, Detergent, Electrochemical gradient, Electromagnetic radiation, Electron transport chain, Energy, Exciton, Förster resonance energy transfer, First quantization, Flash photolysis, Food chain, Free-electron laser, Gamma ray, Gamma-ray burst, Graham Fleming, Green algae, Hydrocarbon, Hydrogen sulfide, Hydroxyl radical, Infrared, Infrared multiphoton dissociation, Interstellar cloud, Interstellar medium, Journal of Physical Chemistry Letters, Light, Light-dependent reactions, Milky Way, Nature (journal), Neil Campbell (scientist), Nicotinamide adenine dinucleotide phosphate, Nitric oxide, Nitrogen, Nitrogen oxide, ..., Observable universe, Ordovician–Silurian extinction events, Oxygen-evolving complex, Ozone, Ozone layer, P680, P700, Parsec, Peroxyacyl nitrates, Photoacid, Photocatalysis, Photochemistry, Photohydrogen, Photon, Photophosphorylation, Photosynthesis, Photosynthetic efficiency, Photosynthetic pigment, Photosystem I, Photosystem II, Phycobilin, Plant, Pollutant, Purple sulfur bacteria, Radical (chemistry), Redox, Smog, Star, Stratosphere, Tandem mass spectrometry, Thylakoid, Troposphere, Tropospheric ozone, Ultrafast laser spectroscopy, Ultraviolet, University of Toronto, Vacuum, X-ray. Expand index (38 more) »
Accessory pigment
Accessory pigments are light-absorbing compounds, found in photosynthetic organisms, that work in conjunction with chlorophyll ''a''.
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Adenosine triphosphate
Adenosine triphosphate (ATP) is a complex organic chemical that participates in many processes.
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Allotropes of oxygen
There are several known allotropes of oxygen.
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Astrophysics
Astrophysics is the branch of astronomy that employs the principles of physics and chemistry "to ascertain the nature of the astronomical objects, rather than their positions or motions in space".
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Atmospheric chemistry
Atmospheric chemistry is a branch of atmospheric science in which the chemistry of the Earth's atmosphere and that of other planets is studied.
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Atom
An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element.
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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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Biosphere
The biosphere (from Greek βίος bíos "life" and σφαῖρα sphaira "sphere") also known as the ecosphere (from Greek οἶκος oîkos "environment" and σφαῖρα), is the worldwide sum of all ecosystems.
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Black-body radiation
Black-body radiation is the thermal electromagnetic radiation within or surrounding a body in thermodynamic equilibrium with its environment, or emitted by a black body (an opaque and non-reflective body).
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Carbon dioxide laser
The carbon dioxide laser (CO2 laser) was one of the earliest gas lasers to be developed.
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Chemical compound
A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) composed of atoms from more than one element held together by chemical bonds.
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Chemical reaction
A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.
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Chlorofluorocarbon
Chlorofluorocarbons (CFCs) are fully halogenated paraffin hydrocarbons that contain only carbon (С), chlorine (Cl), and fluorine (F), produced as volatile derivative of methane, ethane, and propane.
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Chlorophyll
Chlorophyll (also chlorophyl) is any of several related green pigments found in cyanobacteria and the chloroplasts of algae and plants.
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Chloroplast
Chloroplasts are organelles, specialized compartments, in plant and algal cells.
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Cofactor (biochemistry)
A cofactor is a non-protein chemical compound or metallic ion that is required for an enzyme's activity.
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Coherence (physics)
In physics, two wave sources are perfectly coherent if they have a constant phase difference and the same frequency, and the same waveform.
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Cyanobacteria
Cyanobacteria, also known as Cyanophyta, are a phylum of bacteria that obtain their energy through photosynthesis, and are the only photosynthetic prokaryotes able to produce oxygen.
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Detergent
A detergent is a surfactant or a mixture of surfactants with cleaning properties in dilute solutions.
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Electrochemical gradient
An electrochemical gradient is a gradient of electrochemical potential, usually for an ion that can move across a membrane.
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Electromagnetic radiation
In physics, electromagnetic radiation (EM radiation or EMR) refers to the waves (or their quanta, photons) of the electromagnetic field, propagating (radiating) through space-time, carrying electromagnetic radiant energy.
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Electron transport chain
An electron transport chain (ETC) is a series of complexes that transfer electrons from electron donors to electron acceptors via redox (both reduction and oxidation occurring simultaneously) reactions, and couples this electron transfer with the transfer of protons (H+ ions) across a membrane.
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Energy
In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object.
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Exciton
An exciton is a bound state of an electron and an electron hole which are attracted to each other by the electrostatic Coulomb force.
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Förster resonance energy transfer
Förster resonance energy transfer (FRET), fluorescence resonance energy transfer (FRET), resonance energy transfer (RET) or electronic energy transfer (EET) is a mechanism describing energy transfer between two light-sensitive molecules (chromophores).
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First quantization
A first quantization of a physical system is a semi-classical treatment of quantum mechanics, in which particles or physical objects are treated using quantum wave functions but the surrounding environment (for example a potential well or a bulk electromagnetic field or gravitational field) is treated classically.
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Flash photolysis
Flash photolysis is a pump-probe laboratory technique, in which a sample is firstly excited by a strong pulse (called pump pulse) of light from a laser of nanosecond, picosecond, or femtosecond pulse width or by a short-pulse light source such as a flash lamp.
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Food chain
A food chain is a linear network of links in a food web starting from producer organisms (such as grass or trees which use radiation from the Sun to make their food) and ending at apex predator species (like grizzly bears or killer whales), detritivores (like earthworms or woodlice), or decomposer species (such as fungi or bacteria).
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Free-electron laser
A free-electron laser (FEL) is a kind of laser whose lasing medium consists of very-high-speed electrons moving freely through a magnetic structure, hence the term free electron.
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Gamma ray
A gamma ray or gamma radiation (symbol γ or \gamma), is penetrating electromagnetic radiation arising from the radioactive decay of atomic nuclei.
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Gamma-ray burst
In gamma-ray astronomy, gamma-ray bursts (GRBs) are extremely energetic explosions that have been observed in distant galaxies.
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Graham Fleming
Graham R. Fleming (born 1949) is a British born chemist, currently serving as professor at the University of California, Berkeley.
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Green algae
The green algae (singular: green alga) are a large, informal grouping of algae consisting of the Chlorophyta and Charophyta/Streptophyta, which are now placed in separate divisions, as well as the more basal Mesostigmatophyceae, Chlorokybophyceae and Spirotaenia.
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Hydrocarbon
In organic chemistry, a hydrocarbon is an organic compound consisting entirely of hydrogen and carbon.
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Hydrogen sulfide
Hydrogen sulfide is the chemical compound with the chemical formula H2S.
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Hydroxyl radical
The hydroxyl radical, •OH, is the neutral form of the hydroxide ion (OH−).
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Infrared
Infrared radiation (IR) is electromagnetic radiation (EMR) with longer wavelengths than those of visible light, and is therefore generally invisible to the human eye (although IR at wavelengths up to 1050 nm from specially pulsed lasers can be seen by humans under certain conditions). It is sometimes called infrared light.
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Infrared multiphoton dissociation
Infrared multiple photon dissociation (IRMPD) is a technique used in mass spectrometry to fragment molecules in the gas phase usually for structural analysis of the original (parent) molecule.
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Interstellar cloud
An interstellar cloud is generally an accumulation of gas, plasma, and dust in our and other galaxies.
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Interstellar medium
In astronomy, the interstellar medium (ISM) is the matter and radiation that exists in the space between the star systems in a galaxy.
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Journal of Physical Chemistry Letters
The Journal of Physical Chemistry Letters is a peer-reviewed scientific journal published by the American Chemical Society, designed to complement the Journal of Physical Chemistry.
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Light
Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum.
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Light-dependent reactions
In photosynthesis, the light-dependent reactions take place on the thylakoid membranes.
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Milky Way
The Milky Way is the galaxy that contains our Solar System.
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Nature (journal)
Nature is a British multidisciplinary scientific journal, first published on 4 November 1869.
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Neil Campbell (scientist)
Neil Allison Campbell (April 17, 1946 – October 21, 2004) was an American scientist known best for his textbook Biology.
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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 lipid and nucleic acid synthesis, which require NADPH as a reducing agent.
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Nitric oxide
Nitric oxide (nitrogen oxide or nitrogen monoxide) is a colorless gas with the formula NO.
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Nitrogen
Nitrogen is a chemical element with symbol N and atomic number 7.
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Nitrogen oxide
Nitrogen oxide may refer to a binary compound of oxygen and nitrogen, or a mixture of such compounds.
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Observable universe
The observable universe is a spherical region of the Universe comprising all matter that can be observed from Earth at the present time, because electromagnetic radiation from these objects has had time to reach Earth since the beginning of the cosmological expansion.
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Ordovician–Silurian extinction events
The Ordovician–Silurian extinction events, when combined, are the second-largest of the five major extinction events in Earth's history in terms of percentage of genera that became extinct.
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Oxygen-evolving complex
The oxygen-evolving complex (OEC), also known as the water-splitting complex, is a water-oxidizing enzyme involved in the photo-oxidation of water during the light reactions of photosynthesis.
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Ozone
Ozone, or trioxygen, is an inorganic molecule with the chemical formula.
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Ozone layer
The ozone layer or ozone shield is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation.
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P680
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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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.
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Parsec
The parsec (symbol: pc) is a unit of length used to measure large distances to astronomical objects outside the Solar System.
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Peroxyacyl nitrates
Peroxyacyl nitrates (also known as Acyl peroxy nitrates, APN or PANs) are powerful respiratory and eye irritants present in photochemical smog.
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Photoacid
Photoacids are molecules which become more acidic upon absorption of light.
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Photocatalysis
In chemistry, photocatalysis is the acceleration of a photoreaction in the presence of a catalyst.
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Photochemistry
Photochemistry is the branch of chemistry concerned with the chemical effects of light.
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Photohydrogen
Photohydrogen is hydrogen produced with the help of artificial or natural light This is how the leaf of a tree splits water molecules into protons (hydrogen ions), electrons (to make carbohydrates) and oxygen (released into the air as a waste product).
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Photon
The photon is a type of elementary particle, the quantum of the electromagnetic field including electromagnetic radiation such as light, and the force carrier for the electromagnetic force (even when static via virtual particles).
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Photophosphorylation
In the process of photosynthesis, the phosphorylation of ADP to form ATP using the energy of sunlight is called photophosphorylation.
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Photosynthesis
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms' activities (energy transformation).
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Photosynthetic efficiency
The photosynthetic efficiency is the fraction of light energy converted into chemical energy during photosynthesis in plants and algae.
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Photosynthetic pigment
A photosynthetic pigment (accessory pigment; chloroplast pigment; antenna pigment) is a pigment that is present in chloroplasts or photosynthetic bacteria and captures the light energy necessary for 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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Phycobilin
Phycobilins (from Greek: φύκος (phykos) meaning "alga", and from Latin: bilis meaning "bile") are light-capturing bilins found in cyanobacteria and in the chloroplasts of red algae, glaucophytes and some cryptomonads (though not in green algae and plants).
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Plant
Plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae.
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Pollutant
A pollutant is a substance or energy introduced into the environment that has undesired effects, or adversely affects the usefulness of a resource.
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Purple sulfur bacteria
The purple sulfur bacteria (PSB) are part of a group of Proteobacteria capable of photosynthesis, collectively referred to as purple bacteria.
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Radical (chemistry)
In chemistry, a radical (more precisely, a free radical) is an atom, molecule, or ion that has an unpaired valence electron.
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Redox
Redox (short for reduction–oxidation reaction) (pronunciation: or) is a chemical reaction in which the oxidation states of atoms are changed.
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Smog
Smog is a type of air pollutant.
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Star
A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.
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Stratosphere
The stratosphere is the second major layer of Earth's atmosphere, just above the troposphere, and below the mesosphere.
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Tandem mass spectrometry
Tandem mass spectrometry, also known as MS/MS or MS2, involves multiple steps of mass spectrometry selection, with some form of fragmentation occurring in between the stages.
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Thylakoid
A thylakoid is a membrane-bound compartment inside chloroplasts and cyanobacteria.
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Troposphere
The troposphere is the lowest layer of Earth's atmosphere, and is also where nearly all weather conditions take place.
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Tropospheric ozone
Ozone (O3) is a constituent of the troposphere (it is also an important constituent of some regions of the stratosphere commonly known as the ozone layer).
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Ultrafast laser spectroscopy
Ultrafast laser spectroscopy is a spectroscopic technique that uses ultrashort pulse lasers for the study of dynamics on extremely short time scales (attoseconds to nanoseconds).
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Ultraviolet
Ultraviolet (UV) is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.
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University of Toronto
The University of Toronto (U of T, UToronto, or Toronto) is a public research university in Toronto, Ontario, Canada on the grounds that surround Queen's Park.
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Vacuum
Vacuum is space devoid of matter.
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X-ray
X-rays make up X-radiation, a form of electromagnetic radiation.
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Redirects here:
Photodecomposition, Photolization, Photolysation, Photolyse, Photolysis, Photolyzation, Photolyze, Photolyzes, UV photolysis.
References
[1] https://en.wikipedia.org/wiki/Photodissociation
