British Plymouth university earth science professor Ian Stewart 15, carry a hammock, a laptop computer and a car gymnastical bike, into Cornwall botanical garden "garden of Eden project" a transparent seal box. 6 meters wide, long box 2 m, 2.5 m high. cool grey jordans,"I'm 15, 10 at night into the box, then we'll do is take the box from the usual 21% oxygen levels drop to 12.5%. All light is open, after the start, plant photosynthesis, began to provide oxygen for I breathe, I began to exhaled carbon dioxide, this is they need. As the boxes are sealed condition, my biggest problem is when the oxygen content enough for me to survive." 17, sealed box from out of, the end of the 48 hours for a period of "people and plants coexistence" experiment. In the box during a severe headache and life, fatigue has been accompanied by Stewart. "Oxygen levels low, as in elevation 4500 meters, severe headache with extreme fatigue, but other aspects, the placement of the good oxygen concentrations later increased obviously, let me be on to the end, but not without cost." He said.

Botanical garden gardening curator alistair · Griffith said, about three months ago, workers began to cultivate in the box 120 strains of small plants and 30 plants large plants, including MangCao, maize, banana trees and some tropical herbaceous plants. They photosynthesis speed, can produce a large amount of oxygen. cheap jordan shoes,The researchers calculated that in advance through, stay in the volume of the seal 30 stere, about 160 plant can produce a person to breathe oxygen amount minimum. Stewart hope that through "people and plants coexistence" experiment, tells the plant photosynthesis on the importance of human existence. Scientists at Joseph John terry 1772 done at a similar experiments that proved in a kind of mice with the seal of the plant can live, and no plants in the seal of the live only a very short time.

Photosynthesis green plants and algae using chlorophyll and photosynthetic pigment and some bacteria (such as the film with more ancient salt bacteria) use of its cells themselves, in under the irradiation of visible light, carbon dioxide and water (bacteria for hydrogen sulfide and water) into organic matter, and releases the oxygen (bacteria release hydrogen) of the biochemical process. Plant is known as the producer of the food chain, because they can pass photosynthesis production of organic and inorganic materials stored energy. Through the consumption of the food chain, consumers can absorb to plants and by the bacteria, the energy storage efficiency is 10% ~ 20%.discount jordan shoes, For almost all of the biological world biological terms, this process is vital to the survival of them. And the earth carbon oxygen cycle, photosynthesis is indispensable. Photosynthesis is the conversion of energy from the Sun to chemical energy (sugars) by green plants. The "fuel" for ecosystems is energy from the Sun. The Sunlight is captured by green plants during Photosynthesis and stored as chemical energy in carbohydrate molecules. The energy then passes through the ecosystem from species to species when herbivores eat plants and carnivores eat the herbivores. And these interactions form food chains.