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History of the Carbon Cycle

Dive into the intricate History of the Carbon Cycle and the fascinating evolution of Oxygen in Earth's atmosphere. Learn about the Plant Cell organelles, the Endosymbiotic theory, Cyanobacteria, and Stromatolites.

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History of the Carbon Cycle

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  1. History of the Carbon Cycle

  2. Carbon Cycle • A biogeochemical cycle by which carbon is exchanged among the biotic and abiotic factors of the Earth.

  3. Plant Cell Review

  4. Organelles Mitochondrion: breaks down organic molecules in the presence of oxygen to create energy for the cell (cellular respiration)

  5. Chloroplast: Stores energy in the form of organic molecules from carbon dioxide and releases oxygen by using sunlight (photosynthesis)

  6. Endosymbiotic theory: a host cell engulfed prokaryotic cells capable of photosynthesis and cellular respiration

  7. Which organelle and their process came first?

  8. Evidence of Oxygen in the Atmosphere • Cyanobacteria: bacteria that get their energy through photosynthesis and are the only photosynthetic prokaryotes able to produce oxygen.

  9. Stromatolites: originally formed by the growth of layer upon layer of cyanobacteria • These growths primarily contributed to the formation of oxygen of earth's atmosphere • https://ca.pbslearningmedia.org/resource/nvmn-sci-stromatolites/wgbh-nova-making-north-america-stromatolites-worlds-oldest-living-fossil/#.Wdv1O2hSzcs

  10. The oxygen produced from the cyanobacteria was used to make rust (iron + oxygen) • Rust in rock layers begins to form about 2.7 billion years ago (bya) • This is after the first stromatolite fossil appears in our fossil record (3.7 bya)

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