The Electron Transport Chain (cont.) at the end of the pathway,the electrons,along with protons are donated to oxygen to form H,O -during the oxidation of NADH there are 3 steps in which energy loss is sufficient to account for ATP synthesis these steps occur in complexes I,Ill,and IV of the ETC
- at the end of the pathway, the electrons, along with protons are donated to oxygen to form H2O -during the oxidation of NADH there are 3 steps in which energy loss is sufficient to account for ATP synthesis - these steps occur in complexes I, III, and IV of the ETC The Electron Transport Chain (cont.)
Oxidative Phosphorylation is the mechanism by which electron transport is coupled to synthesis of ATP the creation of a proton gradient that accompanies electron transport is the driving force behind synthesis of ATP the complete oxidation of a glucose molecule results in the synthesis of 29.5 to 31 molecules of ATP depending on what other rxs are happening
Oxidative Phosphorylation - is the mechanism by which electron transport is coupled to synthesis of ATP - the creation of a proton gradient that accompanies electron transport is the driving force behind synthesis of ATP - the complete oxidation of a glucose molecule results in the synthesis of 29.5 to 31 molecules of ATP depending on what other rxs are happening
Mitochondrion Cristae Intermembrane space Matrix Outer membrane Inner membrane
Mitochondrion
The Electron Transport Chain Matrix NADH+H 4 enzyme NAD 02 complexes Inner -each of these membrane FADH2 么 complexes FAD Intermembrane consist of several space proteins and prosthetic groups Outer membrane Cytosol
The Electron Transport Chain 4 enzyme complexes -each of these complexes consist of several proteins and prosthetic groups
Complexes I and Il Matrix transfer electrons NADH+ from NADH and NAD' FADH2 respectively, to Ubiquinone(UQ) Inner membrane FADH2 么 FAD Complex Ill Intermembrane space transfers electrons from UQH2 to cytochrome C(cyt C) Complex IV transfers electrons from cyt C Outer toO2 membrane Cytosol
Complexes I and II transfer electrons from NADH and FADH2 respectively, to Ubiquinone (UQ) Complex III transfers electrons from UQH 2 to cytochrome C (cyt C) Complex IV transfers electrons from cyt C to O2