BISC 101 Lecture Notes - Lecture 9: Archaea, Lactic Acid, Acetaldehyde
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30 Jan 2018
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Plants use light energy to generate o2 and organic molecules via photosynthesis. Organic molecules broken down via cellular respiration to generate atp. Cell respiration is a catabolic pathways (yield energy through a series of redox reactions that involve loss or gain or shift in positions in electrons to lower electron states. Redox reaction gain/loss of movement or electrons. Loss of electrons to one substance = oxidation ( donor) Addition of electrons to second substance = reduction (acceptor) Electrons transferred to electron carriers or acceptors in early stages of respiration. Electrons from carries pass through electron transport chains. Energy is released from fuels (organic molecules) due to movement or transfer of electrons (ehich travel with proton as h atom) Citric acid cycle &oxidative phosphorylation molecular furnace that oxidizes acetyl coa to co2 in 8 steps ( enzyme driven reactions) 6 carbon > 2 x co2 pyruvate glucose -> 4 x co2/ g carbon citric acid cycle.
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