BIOC17H3 Lecture Notes - Lecture 6: Great Oxygenation Event, Retina, Ribosomal Rna
Document Summary
Lecture 6: h2 based metabolism produced energy atp for the fixation of co2 to form cellular (organic) material. The accumulated organic material served as nutrients that allowed the appearance of different metabolism: protocell luca (h2 reduction of s produces h2s and atp, co2 used as source of c) Bacteria and archaea: bacteria: they were acetogenic (h2 reduction of co2 yields atp and produce acetate waste). Then there were chemohetetrotrophic and photoautotrophic: archaea: they are methanogenic (h2 reduction of co2 yields atp and produce methane waste, branched into eukaryotes (what?) 2 and fe+2: phototrophic organisms: use light (like plants, sea weeds, microscopic algae, bacteria), all photosynthetic animals are phototrophic, but not all phototropic organisms are photosynthetic. 2 electrons pass through various carriers and protons move into stroma. Sunlight hights pi, which releases 2 electrons which are used to make nadph: dark reaction: 3co2 + 6nadph + 5h2o + 9atp g3p + 6nadp + 2h +