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- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Map%3A_Raven_Biology_12th_Edition/25%3A_The_Origin_and_Diversity_of_Life/25.02%3A_Origins_of_LifeTo account for the origin of life on our earth requires solving several problems: How the organic molecules that define life, e.g. amino acids, nucleotides, were created. How these were assembled int...To account for the origin of life on our earth requires solving several problems: How the organic molecules that define life, e.g. amino acids, nucleotides, were created. How these were assembled into macromolecules, e.g. proteins and nucleic acids, - a process requiring catalysts. How these were able to reproduce themselves. How these were assembled into a system delimited from its surroundings (i.e., a cell). A number of theories address each of these problems.
- https://bio.libretexts.org/Courses/Clinton_College/BIO_403%3A_Microbiology_(Neely)/01%3A_The_Building_Blocks_of_Life__Biological_Macromolecules_and_the_Generation_of_the_Cell/1.02%3A_The_Origins_of_Life/1.2.01%3A_IntroductionIt is nearly universally accepted that there was a time, however brief or long, when the earth was a lifeless planet. Given that the cell is the basic unit of life, and that to be alive is to possess ...It is nearly universally accepted that there was a time, however brief or long, when the earth was a lifeless planet. Given that the cell is the basic unit of life, and that to be alive is to possess all of the properties of life, any cell biology textbook would be remiss without addressing the questions of when and how the first cells appeared on our planet. Abiogenesis is the origin of life from non-living matter. Of course describing abiogenesis is no longer possible by observation!
- https://bio.libretexts.org/Courses/Folsom_Lake_College/BIOL_440%3A_General_Microbiology_(Panoutsopoulos)/01%3A_The_Building_Blocks_of_Life__Biological_Macromolecules_and_the_Generation_of_the_Cell/1.02%3A_The_Origins_of_Life/1.2.01%3A_IntroductionIt is nearly universally accepted that there was a time, however brief or long, when the earth was a lifeless planet. Given that the cell is the basic unit of life, and that to be alive is to possess ...It is nearly universally accepted that there was a time, however brief or long, when the earth was a lifeless planet. Given that the cell is the basic unit of life, and that to be alive is to possess all of the properties of life, any cell biology textbook would be remiss without addressing the questions of when and how the first cells appeared on our planet. Abiogenesis is the origin of life from non-living matter. Of course describing abiogenesis is no longer possible by observation!
- https://bio.libretexts.org/Workbench/Bio_1130%3A_Remixed/02%3A_Origins_of_life/2.05%3A_The_Origin_of_LifeTo account for the origin of life on our earth requires solving several problems: How the organic molecules that define life, e.g. amino acids, nucleotides, were created. How these were assembled int...To account for the origin of life on our earth requires solving several problems: How the organic molecules that define life, e.g. amino acids, nucleotides, were created. How these were assembled into macromolecules, e.g. proteins and nucleic acids, - a process requiring catalysts. How these were able to reproduce themselves. How these were assembled into a system delimited from its surroundings (i.e., a cell). A number of theories address each of these problems.
- https://bio.libretexts.org/Bookshelves/Cell_and_Molecular_Biology/Book%3A_Basic_Cell_and_Molecular_Biology_(Bergtrom)/20%3A_The_Origins_of_Life/20.01%3A_IntroductionIt is nearly universally accepted that there was a time, however brief or long, when the earth was a lifeless planet. Given that the cell is the basic unit of life, and that to be alive is to possess ...It is nearly universally accepted that there was a time, however brief or long, when the earth was a lifeless planet. Given that the cell is the basic unit of life, and that to be alive is to possess all of the properties of life, any cell biology textbook would be remiss without addressing the questions of when and how the first cells appeared on our planet. Abiogenesis is the origin of life from non-living matter. Of course describing abiogenesis is no longer possible by observation!
