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20 Cards in this Set
- Front
- Back
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Metabolism
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a series of chemical reactions
two pathways: anabolic and catabolic |
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Anabolic Metabolism
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building, requires energy
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Catabolic Metabolism
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break down, releases energy
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Order of metabolism
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1. catabolic, 2. anabolic
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Energy
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the ability to do work
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Potential Energy
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energy based on location and structure, chemical
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Kinetic Energy
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energy of motion, heat
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Thermodynamics
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study of energy transformation
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System
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where the things are happening
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Surroundings
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around what's happening
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Universe
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both system and surroundings
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Open system
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moving of energy (a cell)
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Closed system
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no movement of energy
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1st Law of Thermodynamics
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energy cannot be created, but transformed
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2nd Law of Thermodynamics
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disorder of universe increases, energy lost by heat
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_____ must conform to both 1st and 2nd Laws of Thermodynamics
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cells
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Free Energy
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energy of a system that can do work (at uniform system temperature)
Ex: cells |
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Free Energy Chemical Reaction
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G = H-TS
If products less than reactant, G is negative If products more than reactants G is positive |
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Exergonic
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more stable, spontaneous, ball down hill motion
NEGATIVE G |
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Endergonic
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less favorable, ball up hill motion, non spontaneous
POSITIVE G |
