BIOL 111 Lecture Notes - Lecture 3: Photosynthetic Reaction Centre, Causative, Nitrosomonas

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BIOL 111 Full Course Notes
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BIOL 111 Full Course Notes
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Bacteria and archaea have different sorts of membranes, ribosomes, dna, etc. Both bacteria and archaea are luca last universal common ancestor chemoautotrophic prokaryote. Prebiotic chemistry: h2, co2, co, n2, h2s to form organic compounds. Recently discovered to be different from bacteria. Extremophiles: anoxic bogs, hypersaline lagoons, hydrothermal vents, hot springs. Unicellular: live as single cells/filaments, never develop into complex multicellular organisms. Assimilative: can"t ingest solid particles, polymers are broken down into monomers by extracellular enzymes. Monomers are transported across the cell wall and plasma membrane. Bacterial cell = continual flux with processed being assimilated and waste metabolites excreted: metabolism: when h2 reacts with co2, the equilibrium lies on the side of the carbon compounds = acetogens can grow from the reaction. H2 is the electron donor, co2 the electron acceptor spontaneous reaction. 4h2 + 2hco3 + h+ ch3coo- + 2h2o. 4h2 + co2 + h+ ch4 + 2h2o.

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