BIOL 112 Lecture Notes - Lecture 5: Activation Energy, Atp Hydrolysis, Chemical Equilibrium

• School: McGill University
• Department: Biology
• Course: BIOL 112
• Professor: Lucy- Ann Joseph

Document Summary

Metabolism can be divided into 2 types: anabolic reactions link simple to make complex energy storing require energy ex. Dna replication, protein synthesis: catabolic reactions break down complex molecules to make simpler release energy includes all hydrolysis rxns ex. Digestion of food for energy cells must constantly acquire energy from their environment. First law of thermodynamics during any conversion of energy, the total intial energy = total final energy energy is neither created nor destroyed. The tendency of energy to become evenly distributed/dispersed over time drives energy conversions. Energy spontaneously dispersed from being localized to being spread. Energy conversions always result in a state of higher probability ( a more disordered state. G change in free energy, change in entropy in the universe. A cell can release free energy/drive a chem rxn in one of 2 ways: chem rxn causing disorder in the cell closed system ex.