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)
Photosystem I (PSI, or plastocyanin-ferredoxin oxidoreductase) is one of two photosystems in the photosynthetic light reactions of algae, plants, and cyanobacteria. (wikipedia.org)
Wavelength of 700 nm2
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 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)
Electrons1
Ultimately, the electrons that are transferred by Photosystem I are used to produce the moderate-energy hydrogen carrier NADPH. (wikipedia.org)
P7001
The P700 reaction center is composed of modified chlorophyll a that best absorbs light at a wavelength of 700 nm. (wikipedia.org)
Reactions3
This term is something of a misnomer, for these reactions can take place in either light or darkness. (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)
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)
Molecules5
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)
Antenna molecules can absorb all wavelengths of light within the visible spectrum. (wikipedia.org)
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)
Carbon3
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)
Products2
What are the reactants and products of the light independent reaction? (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)
Production1
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)