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16 Cards in this Set

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