BIOL 1F90 Lecture Notes - Lecture 4: Conformational Change, Activation Energy, Catabolism

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Transfer of transformation from 1 form to another increases the entropy, or. Can be transferred from one place to another and transformed from one. 2 forms: kinetic (associated with movement); potential (due to structure or location); chemical energy (energy in molecular bonds) First law (law of conservation of energy) type to another. Entropy: a measure of the disorder that cannot be harnessed to do work. G- free energy or amount of energy for work. Occur without an additional input of energy; not necessarily fast. Free energy change ( g = g final g initial) can be used to determine if a reaction is spontaneous. G = h - t s. G>0 (positive free energy change) disorder in a system. Endergonic reaction; not spontaneous; requires addition of free energy. Atp is a common energy source for all cells. Energy liberated is used to drive many cellular processes. An endergonic reaction can be coupled to an exergonic reaction.

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