CHEMICAL EVOLUTION Definition & Meaning

chemical evolution

The formation of complex organic molecules (see also organic molecule ) from simpler inorganic molecules through chemical reactions in the oceans during the early history of the Earth ; the first step in the development of life on this planet . The period of chemical evolution lasted less than a billion years.

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Notes

Some scientists believe that all or most of the Earth's original organic molecules were created in space and were brought to the Earth's oceans by meteorites .

Many of the steps in chemical evolution can now be reproduced in the laboratory.

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Example Sentences

Examples have not been reviewed.

Moving beyond existing methods limited by tradeoffs between speed and accuracy, the team developed a step-by-step, "directed chemical evolution" process.

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"Now we can look for more analogs in the Milky Way, that are much brighter, and study their chemical evolution without having to chase these extremely faint stars," Frebel says.

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Studies of the chemistry at water droplet interfaces offer new insights into the early stages of life's chemical evolution.

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The discovery “opens up vast and fundamentally new avenues of pursuit for early chemical evolution”, says Bill Martin, who studies molecular evolution at Heinrich Heine University Düsseldorf in Germany.

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This approach has been extended by biochemist Moran Frenkel-Pinter at the NSF–NASA Center for Chemical Evolution in Atlanta, Georgia, and her colleagues.

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