section 3 handout_answers

section 3 handout_answers - Bio1A Spring 2011 Discussion...

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Bio1A Spring 2011 Discussion Section Handout #3 Week of February 7, 2011 Terms to Know Metabolism Metabolic pathway Enzyme Catabolism Anabolism Kinetic energy Heat (thermal energy) Potential energy Chemical energy First law of thermodynamics Second law of thermodynamics Entropy Free energy (ΔG=ΔH-TΔS) Active site Substrate Induced fit Exergonic reaction Endergonic reaction ATP Energy coupling Phosphorylation Cofactor Coenzyme Prosthetic groups Apo-enzyme Holoenzyme Feedback inhibition Competitive inhibitor Noncompetitive inhibitor Uncompetitive inhibitor Allosteric regulation Cooperativity 1) Why is it important that a cell is an open system? Reactions in a closed system eventually reach equilibrium and then do no work. Since cells are open systems, they have a constant flow of materials and never reach equilibrium. If a cell were to reach equilibrium and stop doing work, it would die. 2)
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This note was uploaded on 09/20/2011 for the course CHEMISTRY 120 taught by Professor Head-gordon during the Spring '11 term at ASU.

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section 3 handout_answers - Bio1A Spring 2011 Discussion...

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