BIOL 1201 Chapter : Bio 3-1-16

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15 Mar 2019
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Electron transport: electrons are passed energetically downhill , reducing the complex which receives it, the uphill component, lower affinity for the electrons, small steps, reduction of o2. Hydrogen ion gradient: maintained by the exergonic flow of electrons in the electron transport chain. Chemiosmosis: atp synthesis, powered by the flow of the hydrogen ions back across the inner membrane. Active transport of hydrogen ions powered by the flow of electrons along the electron transport chain. O2: combines with hydrogens to form h2o, the o2 used in respiration is not used to co2. Question 7: in animals atp synthase is located where: inner mitochondrial membrane. Question 9: if the number of hydrogen ion pumps in the electron transport chain is increased what impact will this have on substrate level atp production: no impact. Pyruvate branchpoint: adequate oxygen: channeled to the krebs cycle, nadh is recycled in oxidative phosphorylation. Question 10: a 70 kg man produces 150 grams of h+ per day.

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