| A | B |
| metabolism | the energy of life |
| enzymes | chemicals to speed up reactions |
| catabolic | break down of complex molecules into simpler molecules (energy can be released thru heat |
| anabolic | take energy and pack into molecules (consumer energy) |
| cell respiration | the breakdown of glucose |
| energy | the capacity to do work |
| kinetic energy | energy in the process of doing work |
| potential energy | energy that matter possesses but which is not yet doing |
| thermodynamics | the study of energy transformation |
| first law of thermodynamics | energy can be transformed and transferred but it cannot be created or destroyed |
| second law of thermodynamics | every energy transfer or transformation makes the universe more disordered |
| entropy | disorder |
| exergonic reaction | proceeds with net release of free energy |
| endergonic reaction | one that absorbs free energy from it's surroundings |
| free energy | portion of the energy in a system that is available to do work |
| ATP | source of most cellular energy |
| Enzymes | speed up metabolic reactions by lowering energy barriers of the reaction |