LIFESCI 2 Lecture Notes - Lecture 2: Atp Synthase, Kinetic Energy, Endergonic Reaction

• School: UCLA
• Department: Life Sciences
• Course: LIFESCI 2
• Professor: Friscia Anthony/ Esdin

Document Summary

Kinetic energy the energy of motion e. g. heat, electricity. Potential energy stored energy, energy that could be converted into kinetic. E. g. energy in chemical bonds, gravity, energy across concentration gradients. Transform potential to kinetic or kinetic to potential first law of thermodynamics. Changing one form to another, we don"t lose energy during the process. The amount of free energy in the system free energy is usable energy g. Ve delta g means free energy is released and reaction is spontaneous exergonic. +ve delta g means consume free energy to start the reaction endergonic. Anabolism e. g. condensation join small molecules into bigger ones synthesis reactions endergonic because adp + pi atp they use energy so they absorb energy from the surrounding photosynthesis. Exergonic because atp adp + pi (atp released to the surrounding) Catalyst lowers activation energy -> this increases the rate of reaction. Not used up or changed in the reaction.