BIOL 130 Lecture Notes - Lecture 17: Activation Energy, Negative Feedback, Hydrolysis
Document Summary
Objective- distinguish between thermodynamics and kinetics, and describe their defining parameters. Thermodynamics- is energy required or released in a reaction. Kinetics- how fast a reaction will proceed. Units- kcal, kjoules these quantify the change in free energy- delta g. G- gibb"s free energy- energy available to do work in a system. Total energy energy used= g energy used= energy that is unusable (entropy, friction) Objective- describe changes in free energy verbally and mathematically. If a reaction is reversed just change the sign of the answer (release of energy is negative and reaction that requires energy will be positive) Whether energy is lost or gained- parameter- delta g. Endergonic- absorption of energy, the products being of greater free energy than the reactants. Objective- explain why atp is essential to living organisms (adenosine triphosphate) Atp is unstable- has a lot of energy. Atp adp +p(inorganic compound) release of -7. 3 kcal/mol.
