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Energy & Metabolism

High School Biology-Energy and Metabolim

TermDefinition
Bioenergetics the concept of energy flow in living things (including cells)
Metabolism all chemical reactions that take place inside cells
anabolic reactions chemical reactions requiring energy
catabolic reactions reactions producting energy
Enzymes are catalyst which accelerate and help carry out chemical reactions more efficiently
heat energy (exact thermodynamic definiton) energy being tranferring from one sustem to another that is not work (the energy being lost)
entropy refers to the efficiency and the energy being lost from a reaction-the higher entropy the more energy being lost and the less efficient (same vice versa)
Can cells have potential and kinetic energy? Yes, since cells (anabolic and catabolic) can store and release energy then the can have potential and kinetic energy
Free energy usuable energy or energy avaliable for work (the energy avalible after the loses of energy are accounted for)
Exergonic reactions reactions that have a negative change in free energy (ones that release energy
Spotanious reactions Another term for exergonic reactions-they will have products with less stored energy than the reactants
Endergonic reactions reactions that gain energy meaning the have a positive change in free energy (also known as non-spontanous)
Activation energy the (small) amount of energy input needed for all chemical reactions to occur
Created by: e pluribus unum
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