<prompt> Electrons in electron transpo chain travel from:One way irrespective of the potentialLow to high potentialTwo wayHigh to low potential  <response>: Electrons in electron transpo chain travel from low redox potential to high redox potential. Redox potential is the tendency to gain electrons. In ETC, NADH has minimum R.P. a Strong Electron Donor and oxygenO2has maximum R.P. a Strong Electron Acceptor. 