Light absorbing pigments used in photosynthesis Photosynthetic Pigments

Light absorbing pigments used in photosynthesis, the effects of water on light absorption

Light-Harvesting Complexes Increase the Efficiency of Photosynthesis As noted earlier, each reaction center is associated with an antenna, which contains several light-harvesting complexes LHCspacked with chlorophyll a and, depending on the species, chlorophyll b and other pigments.

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The triose phosphates not thus "recycled" often condense to form hexose phosphates, which ultimately yield sucrosestarch and cellulose. Phycobiliproteins, which appear either blue phycocyanins or red phycoerythrinsare found in red algae and cryptomonads.

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Our emphasis is on photosynthesis in plant chloroplasts, but we also discuss a simpler photosynthetic process that occurs in green and purple bacteria. The principal end products are two carbohydrates that are polymers of hexose six-carbon sugars: Constitutional Convention Photosynthesis and light-absorbing pigments Photosynthesis is the process by which light energy is converted to chemical energy whereby carbon dioxide and water are converted into organic molecules.

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C4 carbon fixation Plants that use the C4 carbon fixation process chemically fix carbon dioxide in the cells of the mesophyll by adding it to the three-carbon molecule phosphoenolpyruvate PEPa reaction catalyzed by an enzyme called PEP carboxylasecreating the four-carbon organic acid oxaloacetic acid. In stage 1, light is absorbed by chlorophyll a molecules bound to reaction-center proteins in the thylakoid membrane.

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