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Origin of Planet Earth: Stellar Explosion, Nebular Cloud, Proto-planets Formation, Clay Minerals, Organic Molecules, Hyd

Explore the fascinating journey of how our planet Earth came into existence. Starting from a stellar explosion, the spinning nebular cloud led to the formation of proto-planets through the gravitational pull of dust particles and gases. Over time, collision and aggregation of these proto-planets gave rise to true planets around 4.6 billion years ago. Discover the crucial role of clay minerals and organic molecules in this process, as well as the possibility of hydrothermal vents being the site of life's origin. Learn about the order of occurrence of metabolic reactions, including fermentation, chemosynthesis, photosynthesis, and respiration, that paved the way for life as we know it.

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Origin of Planet Earth: Stellar Explosion, Nebular Cloud, Proto-planets Formation, Clay Minerals, Organic Molecules, Hyd

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  1. Origin of Planet Earth(also see pp. 55-58 in book) • Stellar explosion • Spinning nebular cloud • Gravitation of dust particles and gases • Further collision and aggregation of proto-planets • True planets form about 4.6 billion years ago

  2. Clay Minerals and Organic Molecules • Sites that facilitate organic chemical reactions

  3. Origin of Organic Molecules

  4. Origin of Life • Hydrothermal vent as a possible site for the origin of life

  5. Metabolic Reactions • Order of occurrence: • Fermentation (Archaea) • Chemosynthesis (Archaea • Photosynthesis (Eubacteria, cyanobacteria) • Respiration (Eukaryotic animals)

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