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Carbonaceous chondrites are a type of meteorite with a high organic content, which formed early in the history of the solar system. In addition to large amounts of insoluble high molecular weight organic polymer, they contain a variety of small organic molecules such as polycyclic aromatic hydrocarbons, polyols and aldaric, aldonic, amino, hydroxy and sugar acids, among others. Intriguingly, some...
Phosphorus is a key element in biology, serving in cellular replication, metabolism, and structure. The versatility of phosphorus in biology is due to several unique chemical characteristics that rely on its electronic structure and geochemical abundance. The formation of phosphorylated biomolecules and their activated precursors have hence been a major focus of prebiotic syntheses for the past 50 years...
The basic concepts necessary to understand the origin of life are presented. The existing models conducting to the emergence of biochemistry from geochemistry on Earth are introduced. The chapter is focused on abiotic photosynthesis as a way to capture energy and generate the core of central metabolism. Universality in intermediate metabolism, mineral catalysis, hydrothermal vents, and the iron-sulfur...
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