While we know the role of the electrons in water production, the protons are shuttled back into the matrix and allow ATP sythase to make ATP. An analogy for the last step of the electron transport chain is a fan at the bottom of a staircase.
Simpsons Comics #3 - Krusty the Klown (Bongo, 1994) - NM $9.29. Buy It Now. Up for sale is Simpsons Comics #3 from Bongo circa 1994. The estimated grade is NM. This is an opportunity to own this key issue for a reasonable price. The comic will come bagged and boarded.
A television series like The Simpsons is in the $500 per second range. Commercials average in the $3,000 to $5,000 per second range. Until recently, the average price of any animation that would be considered professional was about $1,000 per second minimum.