Trace the path of an electron from its origins at the reactioncenter of photosystem II to its final electron acceptor at the endof photosystem I. Be able to name the main molecules involved inthe process (this does not include the individual molecules withinthe ETCs). Describe any actual ‘work’ that the electrondoes on its journey. Select one location in this process of linearelectron flow, and describe the free energy level, entropy level,and potential to do work of the electrons at that location relativeto an adjoining location in the path. Finally, explain howelectrons are replaced at the reaction center pigment molecules,and describe the role that REDOX reactions play in the process ofelectrons moving through the chains.