Is it possible to make a biosollar cell, that is, to use chlorophyll instead of silicon...?
704622
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283028
Photosynthesis generally takes light, CO2 & water and makes sugars.  These sugars are chemically converted in to food, propane, methanol, ethanol, coal, oil, wood and all the other fossil fuels and orgnic compounds on the earth, through natural, geologic, and/or manmade processes.  At every step of each process, energy is lost.  To gain usable energy, other than in biologic processes, requires burning something, and using the expansion of heated gases to create physical force (motion), or then using physical force to drive a generator to create electrical current.    \n\nWe do not currently have an effecient method of making electicity using incoming Solar radiation.  Current solar cells convert a small percentage of one section of the electromagnetic spectrum into electric current.\n\nHope this helps.
11147
You could use a catalyst to turn CO2 into a oxygenate.\n\nPlants would be the most efficient and cheapest way possible as far as I know. But plants won't just grow on mars, you would need to make the conditions suitable for plant life to survive. I think they were talking about man-made global warming to increase the atmosphere and warm it up for possible teraforming. \n\nAlso, there is water on mars already and why would you want it to rain carbon?
272227
Very big cells usually can't survive because the ratio of their surface area to their volume is too small, and they can't get enough nutrients in and waste out. So maybe a faster method of exchanging substances with its environment? Sorry if I'm not much help.
1179265
You're jumping from macro to micro.\nOne requires proteins and one requires chlorophyll (C55H70MgN4O6).
773649
Yes. For example, there are materials in photoelectric sensors made with a form of silica used to convert "light signals" into electrical impulses; we use them everyday in devices we call photocells. They're what turn those outside lights on when it gets dark. Light to sound conversion, and vice versa,  can be accomplished with different materials and circuitry.
124095
Photovoltaic Cells require specialized semi conductors like specially treated silicon crystals.  The answer you are refering to mentioned potatos to make a battery not a photovoltaic cell.\n\nPotatos and lemons, and all fruits and vegetables for that matter, store solar energy from photosynthesis.  This however is not photovoltaic as electricity is not generated at all during photosynthesis.\n\nYou can however create batteries with copper, zinc, and a potato, lemon, or banana.  These foods contain weak electrolytes, one of the main ingredients in a battery.  Unfortunately a potato battery is very weak and much more expensive than batteries you can buy at the store.
868354
No the plant could not produce starch without chlorophyll. They synthesize the sugar from water and carbon dioxide in a process called photosynthesis.
977619
http://www.answers.com/chlorella&r=67
790374
Not unless you can figure out a way to produce a semi-conductor at home.  Basically a solar cell (photovoltaic cell) is a couple of layers of silicon  P type and N type.  Electrons become excited when light quanta penetrates into the P layer. The excited electrons move to the N type and (very oversimplified) create electricity.\n\nI doubt you would have the facilities to create the materials at home.
911568
My best guess would be that the chloroplast would be marked as \n"non-self" in the cell and would be degraded in the lysosome. It would be might complicated to keep the chloroplast from being degraded.
446824
You would need an enormous source of hydrogen, to make the reaction self sustained. That would mean a lot of water and electricity.\n\nMy idea to solve for excess CO2 would be to genetically modify algae so that they can live on Mars or Venus.
961932
Probably not. The purpose of photosynthesis is to produce so much food that is not only enough for the plants use, but also there is some left over for other animals too, If plants were to perform photosynthesis at the same rate of cellular respiration, they would only produce enough food that would suffice their own needs.
1144729
(m)\n\nMake a solar cell in your kitchen\n\nWe found this article on http://www.scitoys.com/scitoys/scitoys/echem/echem2.html \n\nIt was super, super, super cool, so we thank them for allowing us to post it at TheSolarPlan.com!  This is nifty!\n\nA solar cell is a device for converting energy from the sun into electricity. The high-efficiency solar cells you can buy at Radio Shack and other stores are made from highly processed silicon, and require huge factories, high temperatures, vacuum equipment, and lots of money. \n\nIf we are willing to sacrifice efficiency for the ability to make our own solar cells in the kitchen out of materials from the neighborhood hardware store, we can demonstrate a working solar cell in about an hour. \n \nOur solar cell is made from cuprous oxide instead of silicon. Cuprous oxide is one of the first materials known to display the photoelectric effect, in which light causes electricity to flow in a material. \n\nThinking about how to explain the photoelectric effect is what led Albert Einstein to the Nobel prize for physics, and to the theory of relativity.\n\nMaterials you will need \n\nThe solar cell is made from these materials: \nA sheet of copper flashing from the hardware store. This normally costs about $5.00 per square foot. We will need about half a square foot. \nTwo alligator clip leads. \nA sensitive micro-ammeter that can read currents between 10 and 50 microamperes. Radio Shack sells small LCD multimeters that will do, but I used a small surplus meter with a needle. \nAn electric stove. My kitchen stove is gas, so I bought a small one-burner electric hotplate for about $25. The little 700 watt burners probably won't work -- mine is 1100 watts, so the burner gets red hot. \nA large clear plastic bottle off of which you can cut the top. I used a 2 liter spring water bottle. A large mouth glass jar will also work. \nTable salt. We will want a couple tablespoons of salt. \nTap water. \nSand paper or a wire brush on an electric drill. \nSheet metal shears for cutting the copper sheet. \n\n\n\n\n\n\nHow to build the solar cell \n\nMy burner looks like this: \n\nThe first step is to cut a piece of the copper sheeting that is about the size of the burner on the stove. Wash your hands so they don't have any grease or oil on them. Then wash the copper sheet with soap or cleanser to get any oil or grease off of it. Use the sandpaper or wire brush to thoroughly clean the copper sheeting, so that any sulphide or other light corrosion is removed. \n\nNext, place the cleaned and dried copper sheet on the burner and turn the burner to its highest setting. \n\nAs the copper starts to heat up, you will see beautiful oxidation patterns begin to form. Oranges, purples, and reds will cover the copper. \n\n\nAs the copper gets hotter, the colors are replaced with a black coating of cupric oxide. This is not the oxide we want, but it will flake off later, showing the reds, oranges, pinks, and purples of the cuprous oxide layer underneath. \n\n\n\nThe last bits of color disappear as the burner starts to glow red. \n\nWhen the burner is glowing red-hot, the sheet of copper will be coated with a black cupric oxide coat. Let it cook for a half an hour, so the black coating will be thick. This is important, since a thick coating will flake off nicely, while a thin coat will stay stuck to the copper. \n\n\nAfter the half hour of cooking, turn off the burner. Leave the hot copper on the burner to cool slowly. If you cool it too quickly, the black oxide will stay stuck to the copper. \n\nAs the copper cools, it shrinks. The black cupric oxide also shrinks. But they shrink at different rates, which makes the black cupric oxide flake off. \n\n\nThe little black flakes pop off the copper with enough force to make them fly a few inches. This means a little more cleaning effort around the stove, but it is fun to watch. \n\n\nWhen the copper has cooled to room temperature (this takes about 20 minutes), most of
507622
Chlorophyll. It needs the presence of sunlight too.
889141
If u want something easy u can make a rpleca of the solar system. U can by those foam balls and spray paint them. Or u could do an experiment on two plants giving one sunlight and no light to the other. But still feed and water them.
1127088
You should watch the episode of mythbusters where they try to build a death ray with mirrors and need a focal point, they make a mirrior in a contact sorta shape and the light focases on it. if you could make a solar cell like that maybe it would work. The episode was on all weekend, it might be helpful for some other things too!