Приклади вживання Reaction center Англійська мовою та їх переклад на Українською
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Plants carry out this process in photosynthetic reaction centers.
Reaction centers are present in all green plants, algae, and many bacteria.
Key words: biophysics, bacterial reaction centers, electron kinetics, models.
Keywords: reaction center, photoinduced electron transition, theoretical model.
This light energy is then transferred to the organism's reaction center, where photosynthesis takes place.
This reaction center is surrounded by light-harvesting complexes that enhance the absorption of light.
The excitation thentransfers through various proteins in the FMO complex to the reaction center to further photosynthesis.
Reaction Centers in Photosystem I collect red light at a maximum of 700nm by a photopigment called P-700.
Pigments and proteins found in the reaction center help organisms perform the initial stage of energy conversion.
This increases the surface area of the absorbing section and helps focus andconcentrate light energy down into the reaction center to a Chlorophyll.
Green plants and reaction centers of photosynthetic bacteria as sensors of ecological state of environment.
Organic chemistry most often deals with reactions that affect one reaction center in a molecule or one chemical bond.
The reaction center contains two pigments that serve to collect and transfer the energy from photon absorption: BChl and Bph.
C4 plants, in contrast, concentrate CO2 spatially, with a RuBisCO reaction center in a“bundle sheath cell” being inundated with CO2.
A reaction center comprises several(gt;24 orgt;33) protein subunits, that provide a scaffold for a series of cofactors.
In reactions occurring in a living organism, several reaction centers simultaneously participate and several chemical bonds can be formed or broken in one step.
The energy transfer from excited electrons absorbed by pigments in thephycoerythrin subunits at the periphery of these antennas appears at the reaction center in less than 100 ps.[4].
At the heart of a photosystem lies the reaction center, which is an enzyme that uses light to reduce molecules(provide with electrons).
The Fenna-Matthews-Olson(FMO) complex is a water-soluble complex and was the first pigment-protein complex(PPC) to be structure analyzed by x-ray spectroscopy.[1] It appears in green sulfur bacteria and mediates the excitation energytransfer from light-harvesting chlorosomes to the membrane-embedded bacterial reaction center(bRC).
Reaction Centers: The core of the photosynthetic apparatus(a specialized form of chlorophyll a) where photons are captured or received from antennae(or accessory) photosystems and powers photosynthesis.
In the laboratory,scientists can now synthesize artificial photosynthetic reaction centers which rival the natural ones in terms of the amount of sunlight stored as chemical or electrical energy.
The reaction centers whose structures we know are all heterodimers in which this inherent symmetry has been broken, although at their heart they still retain the vestiges of the original symmetric architecture.
Learning how plants absorb light,control the movement of the resulting energy to reaction centers, and convert the light energy to electrical, and finally chemical energy can help us understand how to make molecular-scale computers.
Both reaction center types are present in chloroplasts and cyanobacteria, and work together to form a unique photosynthetic chain able to extract electrons from water, creating oxygen as a byproduct.
The complexes consist of proteins and photosynthetic pigments and surround a photosynthetic reaction center to focus energy, attained from photons absorbed by the pigment, toward the reaction center using Förster resonance energy transfer.
Two families of reaction centers in photosystems exist: type I reaction centers such as photosystem I(P700)in chloroplasts and in green-sulphur bacteria and type II reaction centers such as photosystem II(P680) in chloroplasts and in non-sulphur purple bacteria.
Each antenna complex has between 250 and 400 pigment molecules and the energy they absorb is shuttled by resonance energytransfer to a specialized chlorophyll-protein complex known as the reaction center of each photosystem.[1] The reaction center initiates a complex series of chemical reactions that capture energy in the form of chemical bonds.
Mapping computing problems onto reaction center searches may allow light harvesting to work as a computational device, improving computational speeds at room temperature, yielding 100-1000x efficiency.[1].
For photosystem II, when either of the two chlorophyll a molecules at the reaction center absorb energy, an electron is excited and transferred to an electron acceptor molecule, pheophytin, leaving the chlorophyll a in an oxidized state.
There aren't many reactions centers, so light is first collected by the antennae pigments.