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This may be beyond your means, but in a recent talk on photosynthesis the researchers used C-13 labelled CO2, and looked at the incorporation in metabolites.


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I can highly recommend Prof David MacKay's online book http://www.withouthotair.com/ where puts things into perspective. You can find him on YouTube and TED too. e.g. http://www.withouthotair.com/c18/page_103.shtml "Can we live on renewables" POWER PER UNIT LAND OR WATER AREA Wind 2 W/m2 Offshore wind 3 W/m2 Tidal pools 3 W/m2 Tidal stream ...


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Everyone's looking at photosynthesis for direct energy conversion, but it's not the only approach. Another function of most plants is to pump water up to altitude, to serve its own needs. Tap into that - picking plants where the sap is watery, not inconveniently sticky like maple syrup, resinous, or likely to congeal into rubber, and you have at least ...


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Another alternative is using plants to generate biomasse using photosynthesis and letting bacteria convert that into electricity. There is research being done about this method and you can read more about it on the following websites: http://www.plantpower.eu/ http://plant-e.com/technology.html


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The most basic example of what I would like to talk about seems to be the algae powered lamp that has (apparently) been developped. I think you misunderstood the idea. That lamp uses bioluminescence and not electric power. Normally living cells don't like to give you energy. The trick we use is anaerob fermentation. Without the presence of oxygen ...


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I found surprisingly little information about harvesting energy from photosynthesis Photosynthesis does not produce energy as such, it produces sugars/carbohydrates/chemical energy, which the plant then converts into energy via respiration. You can burn the sugar to produce heat. But this is basically what your doing when you burn a plant. So ...


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It is not possible to do this directly. Indirectly, it is possible, this is actually done by harvesting fruits - they contain the energy of the sunlight conserved in chemical compounds like sugars or starch and their cellular structures. The basic process for this is photosynthesis. The products from the fields are used technically to produce gas by ...


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Yes, planting trees and burning them afterwards is a way to harvest energy from plants that's with us since millenia.


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Photosynthesis uses chlorophyll (or other pigments) for harnessing photons and water (or other compounds) as electron donor $H_2O = 1/2O_2 + 2H^+ + 2e^-$. After splitting the water it sends the electrons through the further steps of an electron transport chain and at the end it reduces $NADP^+$ into $NADPH$. Meanwhile it increases the $H^+$ concentration ...


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Catalysis is about reducing the free energy barrier (aka. activation energy) of a reaction, so it does not require any energy. In photolysis (e.g. splitting water) you get the energy from the absorbed photons. The exact process is called the Joliot-Kok cycle: Figure 1 - Joliot-Kok cycle - source So the photon separates the charges on the P680, after ...



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