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Biosystems II
Overview of Cell Metabolism
11
Biology
Graduate
01/20/2012

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Term
metabolism
Definition
-set of chemical reactions that living organisms use to maintain life
-transfer and utilization of energy
-synthesis and degradation of major biomolecules
Term
free energy (change in G)
Definition
spontaneous
Term
free energy is
Definition
-additive
-positive can be coupled with negative
Term
rate of rxn depends on
Definition
activation energy
Term
metabolic rxns are a mixture of
Definition
-positive and negative change in G
Term
reactions with POSITIVE free energy are coupled to
Definition
hydrolysis of ATP
Term
glycolysis
Definition
conversion of glucose to pyruvate
Term
TCA cycle
Definition
-aerobic metabolism
Term
oxidative phosphorylation
Definition
-nutrient oxidation to form ATP
Term
glycogenesis/glyconeogenesi
Definition
glycogen synthesis/breakdown
Term
gluconeogenesis
Definition
-generation of glucose from non carbohydrate molecules
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