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Published byEarl Watkins Modified over 8 years ago
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Life Utilizes Energy PhototrophsChemotrophs HeterotrophAutotroph Energy Life Utilizes Matter
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Chemical & energy transformations Chemical energy to kinetic energy Eukaryotic flagella and cilia Potential energy to kinetic energy Prokaryotic flagella Electromagnetic energy to chemical energy Photosynthesis Potential energy to kinetic energy Oxidative phosphorylation (ATP production) Chemical energy to potential energy Active transport Enzymes
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Mostly proteins Catalytic RNA has been discovered Substrate specific Several exceptions Increase rate of reaction Can not alter equilibrium Some require cofactors Metals and coenzymes Enzymes
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Informal Degradative enzymes Add “-ase” to end of substrate name Biosynthetic enzymes Add “synthase” or “synthetase” to product name Enzymes
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Oxidoreductases Oxidation reduction reactions Transferases Group transfer Hydrolases Break bonds by insertion of a water molecule Isomerases Intramolecular rearrangements Ligases Form bonds using NTP to drive the reaction Lyases Addition to double bonds or removal to form double bonds Enzymes
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Enzymes & Activation Energy
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Life Utilizes Energy
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Enzymes & Activation Energy
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Cofactors Metals Coenzymes Prosthetic group Cofactors
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Enzymes
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Enzymes & Pathways
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Enzyme Inhibition
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2 nd Law of Thermodynamics
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Metabolism Catabolism Anabolism Dissimilative Assimilative Exergonic Endergonic Oxidative Reductive
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Metabolism
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ATP
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Oxidation - Reduction
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Life Utilizes Energy
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