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16 Cards in this Set
- Front
- Back
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ATP
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powers nearly all forms of cellular work
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Cellular Metabolism
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the chemical activities of cells, the sum of endergonic & exergonic reactions
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Cellular Respiration
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energy-releasing chem. breakdown of glucose molecules & the storage of the energy in a form that the cell can use to perform work
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Chemical Energy
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potential energy of molecules
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Endergonic Reactions
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a chemical reaction that yields products with more potential energy than the reactants
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Energy
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the capacity to perform work
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Energy Coupling
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using energy released from exergonic reactions to drive essential endergonic reactions
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Entropy
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a measure of disorder in a system
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Exergonic Reaction
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chemical reaction in which the reactants contain more potential energy than the products
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Heat
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the amount of energy associated with the movement of the atoms & molecules in a body of matter; energy in its most random form
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Kinetic Energy
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energy that is doing work
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1st Law of Thermodynamics
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the total amount of energy in the universe is constant; transferred & transformed but not created nor destroyed
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2nd Law of Thermodynamics
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energy conversions reduce the order of the universe, increasing its entropy
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Phosphorylation
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the transfer of a phosphate group, usually from ATP, to a molecule
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Potential Energy
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stored energy
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Thermodynamics
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the study of energy transformations that occur in a collection of matter
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