9-energy
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Changes in free energy during glycolysis in human erythrocytes:
the changes in the total (free) energy in the cell (G), which is the energy that can be converted to do work. They are not the energy changes for the individual molecules in the pathway
The second law of thermodynamics
Increasing order in the cell generates heat, which dissipates and causes increased disorder outside the cell. The tendency toward disorder
The second law of thermodynamics classic example:
disorder in a bedroom. *to decrease disorder, energy must be spent
disorder occurs:
spontaneously
According to the 2nd law of thermodynamics, there is a tendency toward higher:
entropy (disorder) in the universe
to decrease disorder, energy must be:
spent
X—>Y what would make this reaction spontaneous?
If X had lower energy than Y
Energy can be defined as: If a reaction results in a negative change in the free energy of the molecule (-G), then the reaction:
the capacity to perform work. increases disorder, and is therefore spontaneous
energy is released:
spontaneous reaction: exergonic
energy is consumed:
Nonspontaneous reaction: endergonic