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1st law of thermodynamics
- energy cannot be created or destroyed, only transformed/transferred
- energy is universally constant
2nd law of thermodynamcs
every energy transfer/trasnformation increases entropy (disorder)
What is the tendency of life?
a reaction that requires a energy is considered
a reaction that occurs without the need for energy
describe an exergonic reaction
when energy is released as a product
describe an endergonic reaction
when energy is absorbed within the reactants
describe a coupled reaction and the resultant free energy of the coupled reaction
- when the energy released by an exergonic reaction is used to initiate the endergonic reaction.
- the free energy is =0
give an example of a coupled reaction in a cell
the hydrolysis and formation of ATP
INSERT PICTURE HERE
what is the energy molecule used in cells
ATP (adenosine triphospate)
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