EnergyMet

EnergyMet - Energy Capacity to do work, which is any change...

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Capacity to do work, which is any change in the state or motion of matter Measured as units of work Measured as Heat energy Energy Kilojoule (kJ) Kilocalore (kcal)
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Closed system Open system
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Energy cannot be created or destroyed Energy can be transferred and changed in form First law of Thermodynamics ** Organisms cannot produce energy, but as open systems, they can capture it
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No energy transfer is 100% efficient Resulting in an increase of Second law of Thermodynamics ** Organisms maintain their organization only with input of energy from surroundings ENTROPY
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• is total potential energy of a system • As entropy increases, amount of free energy decreases • H = G + TS • H is • G is • S is • T is Enthalpy enthalpy free energy entropy absolute temperature in degrees Kelvin
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Exergonic Endergonic
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ATP ADP Adenine Phosphate groups Ribose hydrolysis
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– Substance that becomes oxidized gives up energy – Substance that becomes reduced receives energy – Essential part of cellular respiration, photosynthesis, and other chemical reactions Redox reactions gives up receives
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EnergyMet - Energy Capacity to do work, which is any change...

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