Section 2-4, Enzymes

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Section 2-4, Enzymes

  1. 1.
  2. 2. What do you know about…<br />Energy?<br />The first law of thermodynamics?<br />The second law of thermodynamics?<br />Endergonic & Exergonic Reactions?<br />Enzymes<br />
  3. 3. Energy is..<br />The capacity to perform work<br />Kinetic Energy: actually doing work<br />Heat: energy associated with movement of molecules<br />Potential Energy: capacity to perform work<br />
  4. 4. Thermodynamics<br />Study of energy transformation<br />1st law: conservation of matter<br />2nd law: energy conversions reduce the order of the universe (aka: increase disorder [entropy]).<br />
  5. 5. Chemical Reactions<br />Endergonic: requires a net input of energy.<br />
  6. 6. Chemical Reactions<br />Exergonic: a reaction that releases energy.<br />
  7. 7. Enzymes<br />Lower the activation energy of a reaction<br />

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