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Menampilkan postingan dari Desember, 2009

PHOTOSYNTHESIS

PHOTOSYNTHESIS The free chemical energy required for life processes is derived from organic food materials by a process called biological oxidation. If organisms are allowed to utilize the existing food materials on this planet, it will be exhausted in no time. However, nature has devised a unique mechanism by means of which it replenishes the organic food materials in excess and this is achieved by harnessing the solar energy by plants. Definition: Photosynthesis can be defined as a “series of processes in which solar electro magnetic radiation energy (SEMR) is captured, converted and conserved in the form of chemical energy by green plants”. Biochemically this process can also be defined “as light sensitized Red-Ox process” for it involves light induced Oxidation-Reduction processes. Solar Energy Sun emits light in the form of solar electro magnetic radiation (SEMR) of which only 40% reaches the surface of earth and rest is absorbed by O2, O3, CO2, dust and H2O present