Energy And Enzymes

Energy Enzymes (-ases) Send Metabolism • The sum of all chem rxn's in the body •Series of related rxn's CALA AMA form metabolic pathways Some pathways are primarily energy-producing Catabolism Breaking down organic mater Some pathways are primarily using E to buid complex structur •Anabolism protien + or biosynthesis nuclaic acids Laws of Therodynamics Entropy: describes how E in distributed (more of) •System: matter w/in a defined region of space •Kinetic \(E=\epsilon\) of motion (used to "Cause change" •Potential \[E=\epsilon\] that is stored in position or configuration (due to location/ Chem E E stored in chem bonds chem structures) •Enthalpy (H) internal E \(\Delta H=\) A in enthalpy \(\Delta S=\Delta\) in entropy Free Energy (Gibbs free E) Enthalpy (H, internal E) in a system Entropy (S) in a system \[\Delta G=G_{Ginal}-G\] · \(\Delta G=\Delta H-T\Delta S\) OR products \[\Delta G=G\] Gin reatante Chem Rxn's Initial AG Final • Exothermic -Release heat E reactants products · \(\Delta H<0\) Exergo nie Ran • Endothermic \[\Delta\overline{G}<0\] = spontaneous -Heat E is taken up Endergonic Rxn - \(\Delta H>0\) \[\Delta G>0\] = nonspontaneous Equillibrium \((\Delta G=D)\) Total amount of E in 9 system remains unchanged. In a biological system (cell).... Enthalpy (H) Increases Entropy (S) Decreases monomer Enthalpy (H) Decreases polymer Entropy (S) Increases 2FAD +[S]→ 2FADH, + [P] AG = +85 kJ Which of the following statements are true, regarding this chemical reaction? a. This reaction is spontaneous b. This reaction is non-spontaneous c. This reaction absorbs energy d. This reaction releases energy e. Energy must be added for the reaction to occur