Learning Objectives After completion of this section,you should be able to 1.List the components of four protein complexes I,,and IV that involved in electron transport. 2.Describe the electron transport along the protein complexes of respiratory chain. 3.Understand the mechanism of ATP synthesis by oxidative phosphorylation. 4.Illustrate the site of action of common poisons that block electron transport and oxidative phosphorylation.Learning Objectives After completion of this section, you should be able to : 1. List the components of four protein complexes Ⅰ,Ⅱ,Ⅲ and Ⅳ that involved in electron transport. 2. Describe the electron transport along the protein complexes of respiratory chain. 3. Understand the mechanism of ATP synthesis by oxidative phosphorylation. 4. Illustrate the site of action of common poisons that block electron transport and oxidative phosphorylation