Use this powerpoint to complete the notes sheet on section 2-4

2. What do you know about… Energy? The first law of thermodynamics? The second law of thermodynamics? Endergonic & Exergonic Reactions? Enzymes

3. Energy is.. The capacity to perform work Kinetic Energy: actually doing work Heat: energy associated with movement of molecules Potential Energy: capacity to perform work

4. Thermodynamics Study of energy transformation 1st law: conservation of matter 2nd law: energy conversions reduce the order of the universe (aka: increase disorder [entropy]).

5. Chemical Reactions Endergonic: requires a net input of energy.

6. Chemical Reactions Exergonic: a reaction that releases energy.

7. Enzymes Lower the activation energy of a reaction