BIOL 2170 Chapter Six and Seven Notes
BIOL 2170 Chapter Six and Seven Notes BIOL 2170
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This 3 page Class Notes was uploaded by chelsea1023 on Tuesday September 29, 2015. The Class Notes belongs to BIOL 2170 at University of Toledo taught by Dr. Deborah Chadee in Summer 2015. Since its upload, it has received 21 views. For similar materials see Fundamentals of Life Science: Biomolecules, cells, and Inheritence in Biology at University of Toledo.
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Date Created: 09/29/15
Chapter Six Making Life Work Capturing and Using Energy Requirements of the cell 0 Able to transmit and encode information o Membrane to separate inside from out 0 Energy Adenosine Triphosphate ATP 0 currency of cells 0 Energy source 0 Cellular cash Metabolism 0 Building and breaking of carbon sources to obtain or release energy Energy is a system s ability to do work 0 Kinetic energy of motion 0 Potential energy while at rest First Law of Thermodynamics 0 Energy can t be created or destroyed it can only change form Second Law of Thermodynamics o Entropy randomness disorder is increasing in the universe Gibbs Free Energy 0 deHaG 0 Equal to the amount of energy released or used in a reaction 0 deltaG deltaH temperaturedeltaS 0 ATP hydrolysis has negative deltaG o If negative energy is released if positive energy is used Enzymes have active sites to bind to substrates Inhibitors can be competitive or noncompetitive Competitive enzyme binds to either the substrate or inhibitor Noncompetitive changes the rate of reaction decrease Negative and positive feedback help to maintain homeostasis Chapter Seven Cellular Respiration Harvesting Energy From Carbohydrates and Other Fuel Molecules Cellular Respiration o Breakdown carbs lipids and proteins 0 Release energy 0 Stages 0 Glycolysis takes place in cytoplasm o Acetyl CoA synthesis takes place in cytoplasm o Citric Acid Cycle takes place in mitochondria o Oxidative Phosphorylation takes place in mitochondria Reduction gain of electrons more negative charge Oxidation loss of electrons ess negative charge Glycolysis 0 Phase one consume 2 ATP 0 Phase two ceave 6 carbon sugar to two 3 carbon sugars 0 Phase three produce 4 ATP and 2 NADH o 2 ATP net gain of ATP 4 created but 2 were used in phase one o 2 NADH created Mitochondria 0 Space between membranes is the intermembrane space 0 Space inside inner membrane is mitochondrial matrix Acetyl CoA Synthesis o Converts one pyruvate into Acetyl CoA Citric Acid Cycle 0 Starts with Acetyl CoA ends with 2 ATP 6 NADH and 2 FADH2 Electron Transport Chain ETC 0 Three different ones 0 Last electron receptor is oxygen Fermentation 0 Uses glucose ADP and Pi to create ethanol ATP H20 and CO ethanol 0 Uses glucose ADP and Pi to create lactic acid ATP and H20 lactic acid Monosaccharides galactose fructose mannose Polysaccharides lactose maltose sucrose
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