GBIO 106 : BIOLOGY EXAM 3
15 Mar 2019
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Document Summary
Kinetic energy: energy of motion or energy that is presently doing work, ex: motion of molecules going from high to low, ex: water going through a dam, ex: windmill. If energy is in the bond, it is locked away: bonds can be broken, cell respiration. Only 10% of the energy is passed on from one level to the next. The rest is lost as heat: heat is disorganized energy that is unusable (like the heat that escapes your oven when you are cooking) A measure of disorder, and represents the amount of unusable energy. Since energy is constantly being transformed, as demonstrated by the food chain, then entropy is always increasing. No longer bonded or locked away by chemical bonds. The energy that a cell requires for immediate use is stored in atp (adenosine triphosphate) Free energy is released when 1 of the p bonds is broken.
