The Miller-Urey experiment simulated early Earth conditions by boiling water, creating a reducing atmosphere with gases like H2, CH4, NH3, exposing the mixture to electrical discharge (lightning), and allowing it to cool, ultimately finding simple organic molecules.
The Miller-Urey experiment simulated early Earth by boiling water, mixing vapor with gases (H2, CH4, NH3) in a reducing atmosphere, exposing it to electrical discharge (simulating lightning), and allowing it to cool. Analysis revealed the presence of simple organic molecules.
Text | Miller-Urey experiment: 1.Water was boiled to vapour to reflect the high temperatures common to Earth’s original conditions 2. The vapour was mixed with a variety of gases (including H2, CH4, NH3) to create a reducing atmosphere (no oxygen) 3. This mixture was then exposed to an electrical discharge (simulating the effects of lightning as an energy source for reactions) 4. The mixture was then allowed to cool (concentrating components) and left for a period of ~1 week 5. After this time, the condensed mixture was analysed and found to contain traces of simple organic molecules |
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Tags: 1_5_origin_of_cells
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