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Question
Which of the following organic molecule formation is considered as the borderline between living and non-living?
Which of the following organic molecule formation is considered as the borderline between living and non-living?
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Solution
The correct option is C Nucleoproteins
Nucleoproteins are considered as borderline between living and nonliving organisms because chemosynthesis of self-replicating nucleic acids and proteins followed by aggregation of proteins around nucleic acid resulted in the origin of first life form, around 2000 million years back. Thus, the first life forms were nucleoproteins that lack any definite nucleus i.e., they were prokaryotic chemoheterotrophic organisms. Nucleic acids, proteins, and lipoproteins were present in large spherical colloidal aggregates of macromolecules, named as coacervates/microspheres/micelles etc., depending on their molecular composition, that remains suspended as droplets in sea water. But these structures were nonliving. Thus, the correct answer is C.
Nucleoproteins are considered as borderline between living and nonliving organisms because chemosynthesis of self-replicating nucleic acids and proteins followed by aggregation of proteins around nucleic acid resulted in the origin of first life form, around 2000 million years back. Thus, the first life forms were nucleoproteins that lack any definite nucleus i.e., they were prokaryotic chemoheterotrophic organisms. Nucleic acids, proteins, and lipoproteins were present in large spherical colloidal aggregates of macromolecules, named as coacervates/microspheres/micelles etc., depending on their molecular composition, that remains suspended as droplets in sea water. But these structures were nonliving. Thus, the correct answer is C.
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