PCB-3134 Study Guide - Midterm Guide: Atp Synthase, Intermembrane Space, Oxidative Phosphorylation
Document Summary
Phototrophs: use sunlight to create organic cmpds, then these can be used to make. Chemotrophs: oxidize consumed organics/ inorganics to make atp. Transport biomolecs and ions: against [] gradient and electrochemical potential. 1st law of thermo: energy only transferred but not created/destroyed (conservation of e) 2nd law of thermo: in all physical or chemical changes, universe tends to move towards greater entropy, which requires using e thus e lost and product more stable (thermodynamic spontaneity) <0 steady-state also possible (products being removed, never reach equilibrium. Depicts energy available by a rxn for work (the more negative, the more available) Catabolic pathways are exergonic anabolic are endergonic. * g can be used to measure nearness to equilibrium. *cell at equilibrium would be dead cell instead always at steady state moving towards equil but never reach it made possible by continuous input of energy from outside cell.
