4 Proteins Metabolism

4 Proteins Metabolism - Proteins/Metabolism Ch. 8...

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Proteins/Metabolism Ch. 8 pp.142-151 “ The total energy of the universe is constant and the total entropy is continually increasing.” Isaac Newton (1642- 1727) A concise statement of the first two laws of thermodynamics.
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I. Laws of thermodynamics. Thermodynamics: ________ __________ Energy (E): the capacity to do work Has many forms: potential, kinetic, chemical and more (osmotic, nuclear) A. The first law is the energy in the universe is constant. but can be transformed or transferred E = heat plus work
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B. The second law: all changes occur to increase __________ _______ of the universe. i.e. become more stable Organisms have low entropy and therefore require a lot of energy
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B. The second law: all changes occur to increase randomness or disorder (entropy or S) of the universe. i.e. become more stable Organisms have low entropy and therefore require a lot of energy
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II. The Gibbs free energy (G) predicts the direction of change. A.Direction of reaction determined by
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4 Proteins Metabolism - Proteins/Metabolism Ch. 8...

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