Energy by reaction plastocyanin ferredoxin oxidoreductase. Medical search. Frequent questions

Louis Duysens first proposed the concepts of Photosystems I and II in 1960, and, in the same year, a proposal by Fay Bendall and Robert Hill assembled earlier discoveries into a coherent theory of serial photosynthetic reactions. (wikipedia.org)
A membrane enriched in complexes formed of reaction centers, accessory pigments and electron carriers, in which photosynthetic reactions take place. (e-cyanobacterium.org)

Three proteinaceous iron-sulfur reaction centers are found in PSI. (wikipedia.org)
A photosystem that contains an iron-sulfur reaction center associated with accessory pigments and electron carriers. (e-cyanobacterium.org)

Located within the antenna complex of PSI are molecules of chlorophyll called P700 reaction centers. (wikipedia.org)

Photosystem I is an integral membrane protein complex that uses light energy to catalyze the transfer of electrons across the thylakoid membrane from plastocyanin to ferredoxin. (wikipedia.org)
Ultimately, the electrons that are transferred by Photosystem I are used to produce the moderate-energy hydrogen carrier NADPH. (wikipedia.org)

The P700 reaction center is composed of modified chlorophyll a that best absorbs light at a wavelength of 700 nm. (wikipedia.org)
The reaction center is made of two chlorophyll molecules and is therefore referred to as a dimer. (wikipedia.org)
The reaction center chlorophyll (or the primary electron donor) of photosystem I that is most reactive and best in absorbing light at wavelength of 700 nm. (e-cyanobacterium.org)

Carbon accumulation and remobilization are essential mechanisms in plants to ensure energy transfer between plant tissues with different functions or metabolic needs and to support new generations. (biomedcentral.com)

Photosystem I (PSI, or plastocyanin-ferredoxin oxidoreductase) is one of two photosystems in the photosynthetic light reactions of algae, plants, and cyanobacteria. (wikipedia.org)

Photoexcitation of the pigment molecules in the antenna complex induces electron and energy transfer. (wikipedia.org)

Photosystem I (PSI, or plastocyanin-ferredoxin oxidoreductase) is one of two photosystems in the photosynthetic light reactions of algae, plants, and cyanobacteria. (wikipedia.org)
Louis Duysens first proposed the concepts of Photosystems I and II in 1960, and, in the same year, a proposal by Fay Bendall and Robert Hill assembled earlier discoveries into a coherent theory of serial photosynthetic reactions. (wikipedia.org)

Ultimately, the electrons that are transferred by Photosystem I are used to produce the moderate-energy hydrogen carrier NADPH. (wikipedia.org)
Ferredoxin (Fd) is a soluble protein that facilitates reduction of NADP+ to NADPH. (wikipedia.org)

The photon energy absorbed by Photosystem I also produces a proton-motive force that is used to generate ATP. (wikipedia.org)
A photon of light energy travels until it reaches a molecule of chlorophyll. (e-wit.pl)

Given the low solar energy density on the earth's surface and the inefficiencies of photosynthesis, robust biomass production systems that are optimized for the local environment and which have the greatest energy-return-on-investment are (EROI) desirable for producing biofuels. (biomedcentral.com)

Photoexcitation of the pigment molecules in the antenna complex induces electron and energy transfer. (wikipedia.org)
These pigment molecules transmit the resonance energy from photons when they become photoexcited. (wikipedia.org)

Reactants - CO 2, … During photosynthesis, plants used the sun's energy to change water and carbon dioxide into glucose, a carbohydrate energy source. (e-wit.pl)
In this review, we examine the thermodynamic and kinetic constraints associated with the autotrophic conversion of inorganic carbon into storage carbohydrate and oil, the dominant energy storage products in Chlorophytic microalgae. (biomedcentral.com)

The energy passed around by antenna molecules is directed to the reaction center. (wikipedia.org)
Significantly, we show that the energetic requirements for producing oil and starch relative to the recoverable energy stored in these molecules are very similar on a per carbon basis. (biomedcentral.com)

Photosynthesis - Photosynthesis - The process of photosynthesis: carbon fixation and reduction: The assimilation of carbon into organic compounds is the result of a complex series of enzymatically regulated chemical reactions-the dark reactions. (e-wit.pl)
The light reaction is a process requiring the input of carbon dioxide, water and light, in order to produce the reactants required for the dark reaction, the second stage of photosynthesis. (e-wit.pl)
The inputs of photosynthesis are light energy, and matter in the form of water absorbed through the roots, and carbon dioxide absorbed through the leaves. (e-wit.pl)
Understand Figure 10.6 for an overview of photosynthesis (light reaction and Calvin cycle or carbon fixation). (e-wit.pl)

Reaction Center Photosystem I Reaction Center Light Light Materials made and used 6CO 2 + 6H 2 O + sunlight g C 6 H 12 O 6 + 6O 2 Reactants used in Photosystem II: Products made in Photosystem II: Reactants used in Photosystem I: Products made in Photosystem I: The photosystems would not function properly if _____ was not available. (e-wit.pl)

Regardless, overall biological energy capture, conversion, and storage in microalgae are inefficient with less than 8% conversion of solar into chemical energy achieved. (biomedcentral.com)

What are the reactants and products of the light independent reaction? (e-wit.pl)

Finally, from the energy security perspective a production failure in an algal pond can generally be brought back on line in a matter of days whereas a crop failure in a terrestrial crop production system may take up to a year before another harvest can occur. (biomedcentral.com)