Chapter 8 Metabolism- totality of organism’s reactions; emergent property arising from interactions between molecules of orderly environment Metabolic Pathway- a specific molecule undergoing series of reactions resulting in certain product; catalyzed by specific enzyme Catabolic Pathway- breaking down complex molecules, resulting in release of energy (i.e. cell respiration) Anabolic Pathway- synthesizing complex molecules, resulting in build-up of energy (i.e. photosynthesis) Energy- capacity to cause change; moves matter against opposing forces; ability to rearrange a collection of matter Kinetic Energy- energy of motion Thermal Energy- heat; kinetic energy associated with random movement of atoms or molecules Potential Energy- motionless object that may still possess energy depending on its location or structure Chemical Energy- refers to potential energy available for release in a chemical reaction Thermodynamics- the study of energy transformations that occur in a collection of matter System- matter under study in relation to the rest of the universe Surroundings- everything outside the system Closed System- system isolated from its surroundings (i.e. thermos bottle is closed trapping heat)
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This note was uploaded on 08/27/2010 for the course BIO 8432 taught by Professor Lang during the Spring '10 term at Northwestern IA.