BIOSC 0150 Study Guide - Midterm Guide: Thylakoid, Covalent Bond, Endergonic Reaction

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13 Nov 2017
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Oxidation of glucose: highly exergonic, 3 catabolic pathways harvest energy from glucose, glycolysis anaerobic, cellular respiration aerobic, fermentation anaerobic, redox reactions, reduction gain electrons, oxidation lose electrons. When a molecule loses h atoms it becomes oxidized. Ch4 ch3oh ch2o hcooh co2. Most reduced state ------------------------- most oxidized state: glucose acts as a reducing agent while oxygen acts as an oxidizing agent, nad+ & nadh are key electron carriers, cells harvest energy from glucose oxidation. Oxygen accepts electrons from nadh and this reaction is exergonic. Glycolysis partially oxidizes glucose: takes place in cytosol, glucose converted into 2 pyruvate molecules, produces: 2 atp & 2 nadh, occurs in 10 steps, steps 1-5 require atp. Start w/ glucose fructose 1,6 biphosphate 2 molecules of glyceraldehyde 3 - phosphate: steps 6-10 yield nadh & atp. Start w/ 2 molecules of glyceraldehyde - 3 phosphate 2 pyruvate molecules.

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