Measure of system's instability or its tendency to change to a mere stable state When change in free energy is positive or zero Tells us whether a reaction occurs spontaneously or notĬhange in heat minus temperature and change in entropyĮither change in heat is negative or temperature times change in entropy is positive (system gives up order and increases S) Living systems increase entropy of surroundingsĬreate ordered struuter but also take ordered things and make them less orderedĮntropy of a particual system can decrease as long as Unable to exchange energy/matter with surroundingsĮnergy can be transferred/transformed but cannot be created or destroyedĭuring every energy transfer/transformation some energy is unavailable to do work which results in a loss of heatĮvery energy transfer/transformation increases.īy eating a fish increasing disorder of surroundings by producing heat and small molecules like carbon dioxide Study of energy transformation that occurs in a collection of matter Potential energy available for release in chemical reaction Not moving but can still possess energy due to location/structure Kinetic energy associated with random movement of atoms/molecules Study of how energy flows through living organisms Becomes available to do work of cellĬonsume energy to build complicated molecules from simpler ones sometimes called Bio synthetic pathways Some metabolic pathways release energy by breaking down complex molecules to simpler compoundsĮnergy that was stored in organic molecules. Starting molecule and stopping molecule control flow of automobile traffic, mechanisms that regulate enzymes balance metabolic supply and demand Each step is catalyzed by a specific enzyme Totality of an organism's chemical reactionĮmergent property of life that arises from orderly interactions between moleculesīegins with specific molecule which is then altered into a series of defined steps, resulting in a certain product.
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