OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is chemical evolution?
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Organic life sprung from non-organic matter exclusively through a natural mechanistic process on a pre-biotic earth.
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Newly formed organic molecules polymerized to produce larger molecules and macromolecules
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Chemoheterotrophs-consume organic molecules for both energy and carbon
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Organic compounds in organic soup became depleted, prokaryotes that are able to make their own organic compounds from inorganic precursors
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Explanation:
Detailed explanation-1: -Theory of abiogenesis was proposed by Oparin and Haldane. It proposed that the first form of life could have come from pre-existing, non-living organic molecules.
Detailed explanation-2: -Chemical evolution involves chemical reactions of inorganic compounds to form organic compounds. In the year 1992, Haldane and Oparin proposed the chemical theory of origin of life in which he stated that formation of organic materials take place from abiogenic material in presence of an external source of energy.
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