BIOL 102 Lecture 9: Chapter 9 Biology Lecture notes

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22 Feb 2017
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Anabolic pathways: synthesis, endergonic: must be coupled to exergonic reaction. Used to obtain energy for endergonic reactions: energy stored short term mostly in atp, 2 ways to make atp: substrate-level phosphorylation, chemiosmosis. Electrons removed by oxidation are used to create energy intermediates like nadh. Nadh, nadph, fadh2 : oxidized to make atp, can donate electrons during synthesis reactions, leo says ger. Oxidation of organic fuel molecules during cellular respiration. During cellular respiration, the fuel (such as glucose) is oxidized, and o2 is reduced. Stepwise energy harvest via nad+ and the electron transport chain. Unlike an uncontrolled reaction, the electron transport chain passes electrons in a series of steps. Make large macromolecules, tissues, organs, etc or smaller molecules not available from food. Cellular respiration process by which living cells obtain energy from organic molecules. Primary aim to make atp and nadh. Secondary role as c skeletons for many cell components. Aerobic respiration uses oxygen: o2 consumed and co2 released.

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