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how did organic molecules arise? explain with the help of an experiment.

Asked by 23rd March 2013, 12:20 AM
Answered by Expert

Miller's Experiment

Stanley Miller, a graduate student in biochemistry, built the apparatus shown here. He filled it with
  • water (H2O
  • methane (CH4)
  • ammonia (NH3) and
  • hydrogen (H2)
  • but no oxygen

He hypothesized that this mixture resembled the atmosphere of the early earth. (Some are not so sure.) The mixture was kept circulating by continuously boiling and then condensing the water.

The gases passed through a chamber containing two electrodes with a spark passing between them.

At the end of a week, Miller used paper chromatography to show that the flask now contained several amino acids as well as some other organic molecules.

In the years since Miller's work, many variants of his procedure have been tried. Virtually all the small molecules that are associated with life have been formed.
Answered by Expert 2nd April 2013, 3:58 PM
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