Study Guide PRE20-1 to LEC20-2 PDF

Study Guide PRE20-1 to LEC20-2 BIOL141 Nam PRE L20-1 Redox reactions Describe potential energy in molecules as potential energy of electrons in bonds o Distance from atomic nucleus o We also talked in class how to use non-polar vs. polar bonds to tell this Under...

Study Guide PRE20-1 to LEC20-2 BIOL141 Nam PRE L20-1 Redox reactions Describe potential energy in molecules as potential energy of electrons in bonds o Distance from atomic nucleus o We also talked in class how to use non-polar vs. polar bonds to tell this Understand a redox reaction (oxidized/reduced and e- acceptor/donor) Understand how redox reactions can release energy o Think about high energy e- reactants becoming low energy e- products Understand why cellular respiration cannot release and capture all the energy from burning glucose o BOOM Describe electron carriers NAD+/NADH and FAD/FADH2 o I only show you the chemical structures in pre-lecture 17-1 so you can understand why hydrogenation is reduction and can see where the e- are Explain why cellular respiration uses e- carriers and a series of redox reactions to extract energy from high energy electrons Vocabulary: oxidation, reduction, electron carrier, electron transfer Your Summary from 20-1 Your Questions from 20-1 LEC 20-2 Respiration 1 Glycolysis, pyruvate oxidation, citric acid cycle Know the cellular location of each process Describe important steps, reactants, and products of each stage of respiration You don’t need to memorize but if I give you a diagram of glycolysis or just one set of reactions can you tell me if redox is occurring? If so what molecule is ox/red? Can you tell me if energy coupling occurs and how (Check end of slide questions – there is one place in glycolysis; also one place in kreb) Connect core concepts of energetics (e- potential NRG, e- carriers, redox, energy coupling) at each stage of respiration Follow the number of carbons in the intermediates of glycolysis, pyruvate oxidation and the Krebs cycle and be able to describe where and when they are released. Vocabulary: glucose, pyruvate, acetyl-CoA, oxaloacetate, citrate, substrate level phosphorylation Your Summary from 20-2 Your Questions from 20-2