BIO-1103 Lecture Notes - Lecture 4: Enzyme, Disulfiram, Bioluminescence
Document Summary
Everything alive has to have and use energy. Second law- (energy transformations aren"t 100% efficient) law of. Entropy: organisms must use incoming energy and matter to remain organized, some energy is lost as heat (80-90%, entropy: as energy is transferred, it goes from orderly to disorderly. Nature loves to zip and ski: move downhill as it is transferred. Potential energy: amount of energy stored up: (rock at top of a ledge, person at the top of a zip line) Kinetic energy: putting the potential energy to work by setting it in motion: (rock falling off the ledge, person flying down the zip line) Exergonic reactions (energy out: break apart big molecules, products contain less energy than reactants, energy is released. If you break a bond, it will release a spark of energy and turn the once larger, high- energy bond into a smaller, low- energy bond. Process is called: hydrolysis, digestion, combustion, degradation, or oxidation.
