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Can Plants Grow Without Sun Light?

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Gina Nay

on 15 February 2013

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Transcript of Can Plants Grow Without Sun Light?

Photosynthesis and Cellular Respiration Drive Phase 1 Phase 2 Results Core There are two main ways that scientists are growing plants without sunlight. One of their methods is using different types of light to create an optimal environment for the plant to grow in and produce biomass. The other way is to add a chemical called "15Ea-phyocyanobilin". Photosynthesis is when light is absorbed by plants (photosynthetic organisms). They use the light energy to trigger the chemical reactions that convert CO2 and H2O into sugar (glucose).
6CO2+6H2O+light energy--> C6H12O6+6O2 Scientists have been trying to grow plants without sunlight. The reason this study is being done, is because scientists want to find out better, more optimal, and efficient ways to grow crops and produce more biomass for the ferociously growing population. Can Plants grow without sunlight? A dutch scientist is creating optimal environments for different types of plants and crops to grow inside. His goal is to create "greenhouse skyscrapers", in which crops can grow and landscapes can be preserved. He is growing his plants with only 10% form the normally required water and is feeding them with only red and blue LEDs. He uses sensors to create the perfect environment for each crop so that they may someday produce enough food to feed the escalating world population. In other parts of the world other scientists have created a chemical which tricks the photoreceptors into thinking that it is exposed to direct sunlight. The synthetic substance is called "15Ea-phyocyanobilin" and it replaces the light absorbing component of the photoreceptors. Seeds and seedlings are fed with it. The photosynthetic organisms grow just as well as ones that are exposed to sunlight. The goal for this project is to still have all the matter in the photosynthesis cycle cycled (CO2, H2O, C6H12O6, O2, energy), even with artificial light or synthectic substances. Also, scientists hope to find other positive aspects of their studies to benefit the world; for example:
-make crops without using up a lot of needed land/landscapes
-farmers could save money in the long run because they would be investing in more energy efficient ways to produce crops
-it would make a healthier environment inside, because of the photosynthetic cycle
-opportunity for regions, with a physical geography unable to produce biomass, to produce crops and biomass (desert,highly populated areas) Plants need sunlight to survive, but what if we don't have the sun? What will we do then?
Scientists are trying to grow plants without sunlight, so that an alternative source of energy can be used to catalyze photosynthesis. Cellular Respiration is when the cells in the photosynthetic organisms break down food molecules, in this case C6H12O6, and convert it into energy which it can then use.
C6H12O6+6O2-->6CO2+6H2O+heat energy
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