One of the accepted scientific theories describing the origin of life on Earth is known as chemical evolution. According to this theory, which of the following events would need to occur first for life to evolve?A. onset of photosynthesisB. origin of genetic materialC. Synthesis of organic moleculesD. formation of the plasma membrane

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10-02-2020
Biology

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One of the accepted scientific theories describing the origin of life on Earth is known as chemical evolution. According to this theory, which of the following events would need to occur first for life to evolve?A. onset of photosynthesisB. origin of genetic materialC. Synthesis of organic moleculesD. formation of the plasma membrane

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Diatonic254 Diatonic254 · Answer 1 · 2020-02-22T07:43:28+01:00

C

According to this theory of chemical evolution, synthesis of organic molecules would need to occur first for life to evolve.

Explanation:

This theory (of Abiogenesis) is corroborated by the Miller –Urey experiment that attempts to replicate the early conditions of the earth. It is believed that organic molecules were created spontaneously through chemical reactions spurred by bolts of lightning resulting in the creation of simple organic molecules like lysine amino acid. These organic molecules made the oceans to become a primordial soup for life.Some hypotheses also claim that this was also possible in the bottom of the ocean in the hydrothermal vents when the earth was even hotter and more active.

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luisvaschetto luisvaschetto · Answer 2 · 2021-11-19T13:48:19+01:00

According to the chemical evolution theory, the synthesis of the organic molecules would need to occur first for life to evolve (Option C).

The chemical evolution theory states that chemical reactions slowly transform simple forms of inorganic molecules into complex macromolecules, which are required to sustain life.

This theory (chemical evolution) was proposed by Aleksandr I. Oparin and John Burdon S. Haldane.

The progressive accumulation of organic molecules and the generation of molecules capable of auto-replicating represent fundamental processes in the theory of chemical evolution.

In conclusion, according to the chemical evolution theory, the synthesis of the organic molecules would need to occur first for life to evolve (Option C).

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