IntroBio-05- Energy, enzymes and cellular transport

IntroBio-05- Energy, enzymes and cellular transport -...

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Energy, Enzymes, and Cellular Transport 1
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Energy Capacity to do work 2
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Work Movement of an object against a force 3
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Potential energy Stored energy Chemical energy 4
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Kinetic energy Energy of motion 5
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First Law of Thermodynamics Amount of energy in the universe remains constant Can not be created or destroyed Only changed 6
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Second Law of Thermodynamics Total amount of energy is flowing from high- to lower energy forms In any energy conversion the amount of usable energy for work decreases 7
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Laws of Thermodynamics 8
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Entropy Measure of disorder in a system Every energy change releases heat Heat is energy that is not available to do work 9
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Chemical Energy Potential energy stored in chemical bonds ATP 10
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ATP (adenosine triphosphate) Energy coin of the cell 11
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12
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13
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Metabolism All chemical reactions carried out by an organism Reactions are carried out by enzymes - synthesized by the body 14
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Enzymes Biological catalysts
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