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History of the Carbon Cycle

History of the Carbon Cycle. Carbon Cycle. A biogeochemical cycle by which carbon is exchanged among the biotic and abiotic factors of the Earth. Plant Cell Review. Organelles.

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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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