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This 2 page Class Notes was uploaded by Karlee Castleberry on Thursday September 24, 2015. The Class Notes belongs to BIOL 1020-004 at Auburn University taught by Roland R. Dute in Summer 2015. Since its upload, it has received 54 views. For similar materials see Principles of Biology in Biology at Auburn University.
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Date Created: 09/24/15
Tuesday September 22 2015 Bio exam 2 cont Enzymes cont substrate actin NAD built from myosin pH can denature proteins Regulation of enzyme activity Controlling enzyme synthesis Producing enzymes in an inactive form and activating the enzyme when needed ex Pepsin in stomach made as pepsinogen inactive then forms final shape to be pepsin when ready Allosteric regulation allosteric regulator fitting into the allosteric site Metabolic pathway enzymes AE1gt B E2 gt C E3gt D E4gt E feedback inhibition the last substance in the metabolic pathway E feeds back to the first enzyme A and acts as an allosteric inhibitor to turn off the first enzyme A this shuts off the entire pathway Competitive Inhibition Respiration deals with cells breaking down food and capturing the energy released as ATP Metabolic Pathways Glycolysis breakdown of sugar only process outside of the mitochondria each process is controlled by different enzyme substrate phosphorylation formation of ATP through transfer of a phosphoric group to ADP summary occurs in cytoplasm Thursday September 24 2015 1 glucose 6C gt 2 3 C pyruvates use 2 ATP 4 ATPs are produced 2 NADHs are formed high energy storage aerobic respiration anaerobic respiration without oxygen fast twitch glycolytic fibers less mitochondria slow twitch fibers lots of mitochondria oxygen Fermentation Oxidation of pyruvic acid C02 is formed NADH is formed CoA is formed Citric Acid Cycle Krebs Cycle oxidation of original glucose molecule is completed series of redox rxn s 2 C02 are formed 1 ATP is made 3 NADH 1 FADH2 Oxidative phosphorylation formation of ATP in presence of oxygen electron transport system ETS located on inner membrane of mitochondria cytochrome iron containing proteins Final electron acceptor 02 NADH 25 ATP FADH2 15 ATP chemiosmosis
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