Bio 1A Lect 6 Quiz Answers

Bio 1A Lect 6 Quiz Answers - isolated from the...

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Bio 1A Lect 6 Answers activation energy active site Bioenergetics bioluminescence s build complex molecules from simple ones catabolic pathway chemical energy closed constant created or destroyed emergent energy enzyme Enzymes first law of thermodynamics Free energy heat heat laws of thermodynamics light metabolic pathway Metabolism open open system principle of conservation of energy second law of thermodynamics substrate system and surroundings transition state unchanged without 1) The cell extracts  energy  and uses that to perform work. Some organisms even convert energy to light, as in  bioluminesce 2) metabolic pathway  begins with a specific molecule and ends with a product. Each step is catalyzed by a specific  enzym 3) Energy is a capacity to cause  change . It exists in many forms:  Kinetic energy  is associated with motion,  heat  is KE assoc 4) Thermodynamics  is the study of energy transformations. In a  closed system
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Unformatted text preview: isolated from the surroundings, energy is co 5) The second law of thermodynamics says that every energy transfer results in some loss as heat. Every energy transfer i 6) Cells create ordered structures from less ordered materials. Organisms also replace ordered forms of matter and energy fro 7) Reactions in a closed system eventually reach equilibrium and do no work; cells are not in equilibrium because they are op 8) The change in free energy, known as Gibbs free energy , is related to the change in enthalpy, in entropy and temperature i 9) Enzymes are the chemical reaction catalysts of biological systems. Most are proteins that often use metal ions or prostheti 10) Enzymes lower the activation energy of a reaction by encouraging the transition state better and stabilizing it....
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This note was uploaded on 02/27/2010 for the course BIO 1A taught by Professor Schlissel during the Spring '08 term at Berkeley.

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Bio 1A Lect 6 Quiz Answers - isolated from the...

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