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Evolution of Life

Discover the intricacies of life's evolution through the lens of endosymbiosis, a pivotal theory proposed by Margulis in 1966. Explore the role of prokaryotes—specifically Eubacteria and Archaebacteria—and their contributions to early life forms, including the emergence of the first photosynthetic prokaryote, Cyanobacteria, which played a crucial role in oxygen production in oceans and the formation of ozone. Learn how chloroplasts and mitochondria may have originated from these ancient bacteria, leading to the development of the first eukaryotic cells.

sebastian-mathis
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Evolution of Life

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  1. Evolution of Life Endosymbiosis

  2. 3.5 byaProkaryotes – 2 Kingdoms • Eubacteria (true bacteria) • Archaebacteria (ancient bacteria) E. Coli

  3. First Photosynthetic Prokaryote Oxygen is produced in oceans and creates ozone Cyanobacteria create Stromatolites Cyanobacteria

  4. 1966 – Margulis - Theory of Endosymbiosis Endosymbiosisproposes that mitochondria and chloroplasts were formerly small prokaryotes living within larger host cells 1.5 bya - First Eukaryote

  5. Videoclips • Plant Biology – Chloroplasts

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