Topic 5 Part A - Energy and Metabolism S10 1pp

Topic 5 Part A - Energy and Metabolism S10 1pp - Energy and...

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1 Energy and Metabolism Topic 5 - Part A Chapter 8
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2 Objectives To know and/or understand: What energy is and the difference between potential and kinetic energy How energy is converted between these 2 forms What a redox reaction reaction is and its components What free energy is and the difference between endergonic and exergonic reactions What activation energy is The role of a catalyst in reactions How proteins function as enzymes What the 4 factors are that affect enzyme activity The difference between inhibitors and activators
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3 Objectives II The difference between competitive and non-competitive inhibitors What ATP is What a biochemical pathway is The difference between anabolism and catabolism How feedback inhibition regulates biochemical pathways
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4 Key Words and Phrases Energy (E); kinetic energy; potential energy; thermodynamics; first law of thermodynamics; second law of thermodynamics; entropy oxidation; reduction; redox Free energy; endergonic reaction; exergonic reaction; activation energy; catalyst; enzyme; multienzyme complex; ribozyme Inhibitor; activator; competitive inhibitor; noncompetitive inhibitor; cofactor; co-enzyme Adenosine triphosphate (ATP); biochemical pathway; anabolism; catabolism; feedback inhibition
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5 Outline Flow of Energy (E) in Living Things Laws of Thermodynamics Free Energy Activation Energy Enzymes Forms Activity ATP Biochemical Pathways
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6 Overview The living cell is a miniature chemical factory where thousands of reactions occur The cell extracts energy and applies energy to perform work Some organisms even convert energy to light, as in bioluminescence
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7 Metabolism Metabolism is the totality of an organism’s chemical reactions Metabolism is an emergent property of life that arises from interactions between molecules within the cell A metabolic pathway begins with a specific molecule and ends with a product Each step is catalyzed by a specific enzyme Enzyme 1 Enzyme 2 Enzyme 3 D C B A Reaction 1 Reaction 3 Reaction 2 Starting molecule Product
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This note was uploaded on 05/18/2010 for the course BIO 188 taught by Professor Capco during the Spring '08 term at ASU.

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Topic 5 Part A - Energy and Metabolism S10 1pp - Energy and...

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